From 9597f227f4077fdc67c9fdca4ee90db81b1c59cc Mon Sep 17 00:00:00 2001
From: Laurens Valk <laurens@pybricks.com>
Date: Tue, 25 Feb 2025 13:47:07 +0100
Subject: [PATCH] pybricks.common.IMU: Add settings blocks.

---
 ...ub_imu.settings_acceleration_threshold.svg | 994 ++++++++++++++++++
 ...mu.settings_angular_velocity_threshold.svg | 994 ++++++++++++++++++
 ...ialHub_imu.settings_heading_correction.svg | 994 ++++++++++++++++++
 ...ub_imu.settings_acceleration_threshold.svg | 994 ++++++++++++++++++
 ...mu.settings_angular_velocity_threshold.svg | 994 ++++++++++++++++++
 ...torHub_imu.settings_heading_correction.svg | 994 ++++++++++++++++++
 ...ub_imu.settings_acceleration_threshold.svg | 994 ++++++++++++++++++
 ...mu.settings_angular_velocity_threshold.svg | 994 ++++++++++++++++++
 ...imeHub_imu.settings_heading_correction.svg | 994 ++++++++++++++++++
 ...ub_imu.settings_acceleration_threshold.svg | 994 ++++++++++++++++++
 ...mu.settings_angular_velocity_threshold.svg | 994 ++++++++++++++++++
 ...nicHub_imu.settings_heading_correction.svg | 994 ++++++++++++++++++
 doc/main/hubs/essentialhub.rst                |   9 +
 doc/main/hubs/primehub.rst                    |   9 +
 doc/main/hubs/technichub.rst                  |   9 +
 15 files changed, 11955 insertions(+)
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_EssentialHub_imu.settings_acceleration_threshold.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_EssentialHub_imu.settings_angular_velocity_threshold.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_EssentialHub_imu.settings_heading_correction.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_InventorHub_imu.settings_acceleration_threshold.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_InventorHub_imu.settings_angular_velocity_threshold.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_InventorHub_imu.settings_heading_correction.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_acceleration_threshold.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_angular_velocity_threshold.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_heading_correction.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_TechnicHub_imu.settings_acceleration_threshold.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_TechnicHub_imu.settings_angular_velocity_threshold.svg
 create mode 100644 doc/main/blockimg/pybricks_blockImuConfigure_TechnicHub_imu.settings_heading_correction.svg

diff --git a/doc/main/blockimg/pybricks_blockImuConfigure_EssentialHub_imu.settings_acceleration_threshold.svg b/doc/main/blockimg/pybricks_blockImuConfigure_EssentialHub_imu.settings_acceleration_threshold.svg
new file mode 100644
index 0000000..5090956
--- /dev/null
+++ b/doc/main/blockimg/pybricks_blockImuConfigure_EssentialHub_imu.settings_acceleration_threshold.svg
@@ -0,0 +1,994 @@
+<!-- Copyright (c) 2024 The Pybricks Authors. All rights reserved. -->
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 645.578125 57.19999999999982" class="blocklySvg pybricks_renderer-renderer pybricks-zelos-light-theme" width="645.578125" height="57.19999999999982" style="background-color: transparent"><style xmlns="http://www.w3.org/1999/xhtml">.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyText,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyFlyoutLabelText {
+font: bold 12pt "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyText {
+fill: #fff;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyNonEditableText&gt;rect:not(.blocklyDropdownRect),
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyEditableText&gt;rect:not(.blocklyDropdownRect) {
+fill: #fff;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyNonEditableText&gt;text,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyEditableText&gt;text,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyNonEditableText&gt;g&gt;text,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyEditableText&gt;g&gt;text {
+fill: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyFlyoutLabelText {
+fill: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyText.blocklyBubbleText {
+fill: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDraggable:not(.blocklyDisabled)
+ .blocklyEditableText:not(.editing):hover&gt;rect,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDraggable:not(.blocklyDisabled)
+ .blocklyEditableText:not(.editing):hover&gt;.blocklyPath {
+stroke: #fff;
+stroke-width: 2;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyHtmlInput {
+font-family: "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+font-weight: bold;
+color: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDropdownText {
+fill: #fff !important;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme.blocklyWidgetDiv .goog-menuitem,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme.blocklyDropDownDiv .goog-menuitem {
+font-family: "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme.blocklyDropDownDiv .goog-menuitem-content {
+color: #fff;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyHighlightedConnectionPath {
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+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDisabled &gt; .blocklyOutlinePath {
+fill: url(#blocklyDisabledPattern462829236637911)
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyInsertionMarker&gt;.blocklyPath {
+fill-opacity: 0.2;
+stroke: none;
+}
+
+.blocklySvg {
+  background-color: #fff;
+  outline: none;
+  overflow: hidden;  /* IE overflows by default. */
+  position: absolute;
+  display: block;
+}
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+.blocklyWidgetDiv {
+  display: none;
+  position: absolute;
+  z-index: 99999;  /* big value for bootstrap3 compatibility */
+}
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+.injectionDiv {
+  height: 100%;
+  position: relative;
+  overflow: hidden;  /* So blocks in drag surface disappear at edges */
+  touch-action: none;
+}
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+.blocklyNonSelectable {
+  user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
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+.blocklyBlockCanvas.blocklyCanvasTransitioning,
+.blocklyBubbleCanvas.blocklyCanvasTransitioning {
+  transition: transform .5s;
+}
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+.blocklyTooltipDiv {
+  background-color: #ffffc7;
+  border: 1px solid #ddc;
+  box-shadow: 4px 4px 20px 1px rgba(0,0,0,.15);
+  color: #000;
+  display: none;
+  font: 9pt sans-serif;
+  opacity: .9;
+  padding: 2px;
+  position: absolute;
+  z-index: 100000;  /* big value for bootstrap3 compatibility */
+}
+
+.blocklyDropDownDiv {
+  position: absolute;
+  left: 0;
+  top: 0;
+  z-index: 1000;
+  display: none;
+  border: 1px solid;
+  border-color: #dadce0;
+  background-color: #fff;
+  border-radius: 2px;
+  padding: 4px;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
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+  max-height: 300px;  /* @todo: spec for maximum height. */
+  overflow: auto;
+  overflow-x: hidden;
+  position: relative;
+}
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+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 16px;
+  height: 16px;
+  z-index: -1;
+  background-color: inherit;
+  border-color: inherit;
+}
+
+.blocklyDropDownButton {
+  display: inline-block;
+  float: left;
+  padding: 0;
+  margin: 4px;
+  border-radius: 4px;
+  outline: none;
+  border: 1px solid;
+  transition: box-shadow .1s;
+  cursor: pointer;
+}
+
+.blocklyArrowTop {
+  border-top: 1px solid;
+  border-left: 1px solid;
+  border-top-left-radius: 4px;
+  border-color: inherit;
+}
+
+.blocklyArrowBottom {
+  border-bottom: 1px solid;
+  border-right: 1px solid;
+  border-bottom-right-radius: 4px;
+  border-color: inherit;
+}
+
+.blocklyResizeSE {
+  cursor: se-resize;
+  fill: #aaa;
+}
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+.blocklyResizeSW {
+  cursor: sw-resize;
+  fill: #aaa;
+}
+
+.blocklyResizeLine {
+  stroke: #515A5A;
+  stroke-width: 1;
+}
+
+.blocklyHighlightedConnectionPath {
+  fill: none;
+  stroke: #fc3;
+  stroke-width: 4px;
+}
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+.blocklyPathLight {
+  fill: none;
+  stroke-linecap: round;
+  stroke-width: 1;
+}
+
+.blocklySelected&gt;.blocklyPathLight {
+  display: none;
+}
+
+.blocklyDraggable {
+  cursor: grab;
+  cursor: -webkit-grab;
+}
+
+.blocklyDragging {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+  /* Changes cursor on mouse down. Not effective in Firefox because of
+     https://bugzilla.mozilla.org/show_bug.cgi?id=771241 */
+.blocklyDraggable:active {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+.blocklyDragging.blocklyDraggingDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyDragging&gt;.blocklyPath,
+.blocklyDragging&gt;.blocklyPathLight {
+  fill-opacity: .8;
+  stroke-opacity: .8;
+}
+
+.blocklyDragging&gt;.blocklyPathDark {
+  display: none;
+}
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+.blocklyDisabled&gt;.blocklyPath {
+  fill-opacity: .5;
+  stroke-opacity: .5;
+}
+
+.blocklyDisabled&gt;.blocklyPathLight,
+.blocklyDisabled&gt;.blocklyPathDark {
+  display: none;
+}
+
+.blocklyInsertionMarker&gt;.blocklyPath,
+.blocklyInsertionMarker&gt;.blocklyPathLight,
+.blocklyInsertionMarker&gt;.blocklyPathDark {
+  fill-opacity: .2;
+  stroke: none;
+}
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+  font-family: monospace;
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+}
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+.blocklyFlyout {
+  position: absolute;
+  z-index: 20;
+}
+
+.blocklyText text {
+  cursor: default;
+}
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+/*
+  Don't allow users to select text.  It gets annoying when trying to
+  drag a block and selected text moves instead.
+*/
+.blocklySvg text {
+  user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+  cursor: inherit;
+}
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+.blocklyHidden {
+  display: none;
+}
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+.blocklyFieldDropdown:not(.blocklyHidden) {
+  display: block;
+}
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+.blocklyIconGroup {
+  cursor: default;
+}
+
+.blocklyIconGroup:not(:hover),
+.blocklyIconGroupReadonly {
+  opacity: .6;
+}
+
+.blocklyIconShape {
+  fill: #00f;
+  stroke: #fff;
+  stroke-width: 1px;
+}
+
+.blocklyIconSymbol {
+  fill: #fff;
+}
+
+.blocklyMinimalBody {
+  margin: 0;
+  padding: 0;
+}
+
+.blocklyHtmlInput {
+  border: none;
+  border-radius: 4px;
+  height: 100%;
+  margin: 0;
+  outline: none;
+  padding: 0;
+  width: 100%;
+  text-align: center;
+  display: block;
+  box-sizing: border-box;
+}
+
+/* Remove the increase and decrease arrows on the field number editor */
+input.blocklyHtmlInput[type=number]::-webkit-inner-spin-button,
+input.blocklyHtmlInput[type=number]::-webkit-outer-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+input[type=number] {
+  -moz-appearance: textfield;
+}
+
+.blocklyMainBackground {
+  stroke-width: 1;
+  stroke: #c6c6c6;  /* Equates to #ddd due to border being off-pixel. */
+}
+
+.blocklyMutatorBackground {
+  fill: #fff;
+  stroke: #ddd;
+  stroke-width: 1;
+}
+
+.blocklyFlyoutBackground {
+  fill: #ddd;
+  fill-opacity: .8;
+}
+
+.blocklyMainWorkspaceScrollbar {
+  z-index: 20;
+}
+
+.blocklyFlyoutScrollbar {
+  z-index: 30;
+}
+
+.blocklyScrollbarHorizontal,
+.blocklyScrollbarVertical {
+  position: absolute;
+  outline: none;
+}
+
+.blocklyScrollbarBackground {
+  opacity: 0;
+}
+
+.blocklyScrollbarHandle {
+  fill: #ccc;
+}
+
+.blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyScrollbarHandle:hover {
+  fill: #bbb;
+}
+
+/* Darken flyout scrollbars due to being on a grey background. */
+/* By contrast, workspace scrollbars are on a white background. */
+.blocklyFlyout .blocklyScrollbarHandle {
+  fill: #bbb;
+}
+
+.blocklyFlyout .blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyFlyout .blocklyScrollbarHandle:hover {
+  fill: #aaa;
+}
+
+.blocklyInvalidInput {
+  background: #faa;
+}
+
+.blocklyVerticalMarker {
+  stroke-width: 3px;
+  fill: rgba(255,255,255,.5);
+  pointer-events: none;
+}
+
+.blocklyComputeCanvas {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+
+.blocklyNoPointerEvents {
+  pointer-events: none;
+}
+
+.blocklyContextMenu {
+  border-radius: 4px;
+  max-height: 100%;
+}
+
+.blocklyDropdownMenu {
+  border-radius: 2px;
+  padding: 0 !important;
+}
+
+.blocklyDropdownMenu .blocklyMenuItem {
+  /* 28px on the left for icon or checkbox. */
+  padding-left: 28px;
+}
+
+/* BiDi override for the resting state. */
+.blocklyDropdownMenu .blocklyMenuItemRtl {
+  /* Flip left/right padding for BiDi. */
+  padding-left: 5px;
+  padding-right: 28px;
+}
+
+.blocklyWidgetDiv .blocklyMenu {
+  background: #fff;
+  border: 1px solid transparent;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+  font: normal 13px Arial, sans-serif;
+  margin: 0;
+  outline: none;
+  padding: 4px 0;
+  position: absolute;
+  overflow-y: auto;
+  overflow-x: hidden;
+  max-height: 100%;
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+.blocklyWidgetDiv .blocklyMenu.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv .blocklyMenu {
+  background: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  border: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  font: normal 13px "Helvetica Neue", Helvetica, sans-serif;
+  outline: none;
+  position: relative;  /* Compatibility with gapi, reset from goog-menu */
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+/* State: resting. */
+.blocklyMenuItem {
+  border: none;
+  color: #000;
+  cursor: pointer;
+  list-style: none;
+  margin: 0;
+  /* 7em on the right for shortcut. */
+  min-width: 7em;
+  padding: 6px 15px;
+  white-space: nowrap;
+}
+
+/* State: disabled. */
+.blocklyMenuItemDisabled {
+  color: #ccc;
+  cursor: inherit;
+}
+
+/* State: hover. */
+.blocklyMenuItemHighlight {
+  background-color: rgba(0,0,0,.1);
+}
+
+/* State: selected/checked. */
+.blocklyMenuItemCheckbox {
+  height: 16px;
+  position: absolute;
+  width: 16px;
+}
+
+.blocklyMenuItemSelected .blocklyMenuItemCheckbox {
+  background: url(https://blockly-demo.appspot.com/static/media/sprites.png) no-repeat -48px -16px;
+  float: left;
+  margin-left: -24px;
+  position: static;  /* Scroll with the menu. */
+}
+
+.blocklyMenuItemRtl .blocklyMenuItemCheckbox {
+  float: right;
+  margin-right: -24px;
+}
+
+
+.blocklyZoom&gt;image, .blocklyZoom&gt;svg&gt;image {
+  opacity: .4;
+}
+
+.blocklyZoom&gt;image:hover, .blocklyZoom&gt;svg&gt;image:hover {
+  opacity: .6;
+}
+
+.blocklyZoom&gt;image:active, .blocklyZoom&gt;svg&gt;image:active {
+  opacity: .8;
+}
+
+
+.blocklyCommentForeignObject {
+  position: relative;
+  z-index: 0;
+}
+
+.blocklyCommentRect {
+  fill: #E7DE8E;
+  stroke: #bcA903;
+  stroke-width: 1px;
+}
+
+.blocklyCommentTarget {
+  fill: transparent;
+  stroke: #bcA903;
+}
+
+.blocklyCommentTargetFocused {
+  fill: none;
+}
+
+.blocklyCommentHandleTarget {
+  fill: none;
+}
+
+.blocklyCommentHandleTargetFocused {
+  fill: transparent;
+}
+
+.blocklyFocused&gt;.blocklyCommentRect {
+  fill: #B9B272;
+  stroke: #B9B272;
+}
+
+.blocklySelected&gt;.blocklyCommentTarget {
+  stroke: #fc3;
+  stroke-width: 3px;
+}
+
+.blocklyCommentDeleteIcon {
+  cursor: pointer;
+  fill: #000;
+  display: none;
+}
+
+.blocklySelected &gt; .blocklyCommentDeleteIcon {
+  display: block;
+}
+
+.blocklyDeleteIconShape {
+  fill: #000;
+  stroke: #000;
+  stroke-width: 1px;
+}
+
+.blocklyDeleteIconShape.blocklyDeleteIconHighlighted {
+  stroke: #fc3;
+}
+
+
+.blocklyCommentTextarea {
+  background-color: #fef49c;
+  border: 0;
+  display: block;
+  margin: 0;
+  outline: 0;
+  padding: 3px;
+  resize: none;
+  text-overflow: hidden;
+}
+
+
+.blocklyAngleCircle {
+  stroke: #444;
+  stroke-width: 1;
+  fill: #ddd;
+  fill-opacity: 0.8;
+}
+
+.blocklyAngleMarks {
+  stroke: #444;
+  stroke-width: 1;
+}
+
+.blocklyAngleGauge {
+  fill: #f88;
+  fill-opacity: 0.8;
+  pointer-events: none;
+}
+
+.blocklyAngleLine {
+  stroke: #f00;
+  stroke-width: 2;
+  stroke-linecap: round;
+  pointer-events: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.blocklyHtmlTextAreaInput {
+  font-family: monospace;
+  resize: none;
+  overflow: hidden;
+  height: 100%;
+  text-align: left;
+}
+
+.blocklyHtmlTextAreaInputOverflowedY {
+  overflow-y: scroll;
+}
+
+
+.blocklyFlyoutButton {
+  fill: #888;
+  cursor: default;
+}
+
+.blocklyFlyoutButtonShadow {
+  fill: #666;
+}
+
+.blocklyFlyoutButton:hover {
+  fill: #aaa;
+}
+
+.blocklyFlyoutLabel {
+  cursor: default;
+}
+
+.blocklyFlyoutLabelBackground {
+  opacity: 0;
+}
+
+
+.blocklyTreeRow:not(.blocklyTreeSelected):hover {
+  background-color: rgba(255, 255, 255, .2);
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyToolboxCategory {
+  margin: 1px 5px 1px 0;
+}
+
+.blocklyToolboxDiv[dir="RTL"][layout="h"] .blocklyToolboxCategory {
+  margin: 1px 0 1px 5px;
+}
+
+.blocklyTreeRow {
+  height: 22px;
+  line-height: 22px;
+  margin-bottom: 3px;
+  padding-right: 8px;
+  white-space: nowrap;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {
+  margin-left: 8px;
+  padding-right: 0;
+}
+
+.blocklyTreeIcon {
+  background-image: url(https://blockly-demo.appspot.com/static/media/sprites.png);
+  height: 16px;
+  vertical-align: middle;
+  visibility: hidden;
+  width: 16px;
+}
+
+.blocklyTreeIconClosed {
+  background-position: -32px -1px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeIconClosed {
+  background-position: 0 -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: -32px -17px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: 0 -17px;
+}
+
+.blocklyTreeIconOpen {
+  background-position: -16px -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconOpen {
+  background-position: -16px -17px;
+}
+
+.blocklyTreeLabel {
+  cursor: default;
+  font: 16px sans-serif;
+  padding: 0 3px;
+  vertical-align: middle;
+}
+
+.blocklyToolboxDelete .blocklyTreeLabel {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyTreeSelected .blocklyTreeLabel {
+  color: #fff;
+}
+
+
+.blocklyTreeSeparator {
+  border-bottom: solid #e5e5e5 1px;
+  height: 0;
+  margin: 5px 0;
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyTreeSeparator {
+  border-right: solid #e5e5e5 1px;
+  border-bottom: none;
+  height: auto;
+  margin: 0 5px 0 5px;
+  padding: 5px 0;
+  width: 0;
+}
+
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new file mode 100644
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+
+.blocklyArrowBottom {
+  border-bottom: 1px solid;
+  border-right: 1px solid;
+  border-bottom-right-radius: 4px;
+  border-color: inherit;
+}
+
+.blocklyResizeSE {
+  cursor: se-resize;
+  fill: #aaa;
+}
+
+.blocklyResizeSW {
+  cursor: sw-resize;
+  fill: #aaa;
+}
+
+.blocklyResizeLine {
+  stroke: #515A5A;
+  stroke-width: 1;
+}
+
+.blocklyHighlightedConnectionPath {
+  fill: none;
+  stroke: #fc3;
+  stroke-width: 4px;
+}
+
+.blocklyPathLight {
+  fill: none;
+  stroke-linecap: round;
+  stroke-width: 1;
+}
+
+.blocklySelected&gt;.blocklyPathLight {
+  display: none;
+}
+
+.blocklyDraggable {
+  cursor: grab;
+  cursor: -webkit-grab;
+}
+
+.blocklyDragging {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+  /* Changes cursor on mouse down. Not effective in Firefox because of
+     https://bugzilla.mozilla.org/show_bug.cgi?id=771241 */
+.blocklyDraggable:active {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+.blocklyDragging.blocklyDraggingDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyDragging&gt;.blocklyPath,
+.blocklyDragging&gt;.blocklyPathLight {
+  fill-opacity: .8;
+  stroke-opacity: .8;
+}
+
+.blocklyDragging&gt;.blocklyPathDark {
+  display: none;
+}
+
+.blocklyDisabled&gt;.blocklyPath {
+  fill-opacity: .5;
+  stroke-opacity: .5;
+}
+
+.blocklyDisabled&gt;.blocklyPathLight,
+.blocklyDisabled&gt;.blocklyPathDark {
+  display: none;
+}
+
+.blocklyInsertionMarker&gt;.blocklyPath,
+.blocklyInsertionMarker&gt;.blocklyPathLight,
+.blocklyInsertionMarker&gt;.blocklyPathDark {
+  fill-opacity: .2;
+  stroke: none;
+}
+
+.blocklyMultilineText {
+  font-family: monospace;
+}
+
+.blocklyNonEditableText&gt;text {
+  pointer-events: none;
+}
+
+.blocklyFlyout {
+  position: absolute;
+  z-index: 20;
+}
+
+.blocklyText text {
+  cursor: default;
+}
+
+/*
+  Don't allow users to select text.  It gets annoying when trying to
+  drag a block and selected text moves instead.
+*/
+.blocklySvg text {
+  user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+  cursor: inherit;
+}
+
+.blocklyHidden {
+  display: none;
+}
+
+.blocklyFieldDropdown:not(.blocklyHidden) {
+  display: block;
+}
+
+.blocklyIconGroup {
+  cursor: default;
+}
+
+.blocklyIconGroup:not(:hover),
+.blocklyIconGroupReadonly {
+  opacity: .6;
+}
+
+.blocklyIconShape {
+  fill: #00f;
+  stroke: #fff;
+  stroke-width: 1px;
+}
+
+.blocklyIconSymbol {
+  fill: #fff;
+}
+
+.blocklyMinimalBody {
+  margin: 0;
+  padding: 0;
+}
+
+.blocklyHtmlInput {
+  border: none;
+  border-radius: 4px;
+  height: 100%;
+  margin: 0;
+  outline: none;
+  padding: 0;
+  width: 100%;
+  text-align: center;
+  display: block;
+  box-sizing: border-box;
+}
+
+/* Remove the increase and decrease arrows on the field number editor */
+input.blocklyHtmlInput[type=number]::-webkit-inner-spin-button,
+input.blocklyHtmlInput[type=number]::-webkit-outer-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+input[type=number] {
+  -moz-appearance: textfield;
+}
+
+.blocklyMainBackground {
+  stroke-width: 1;
+  stroke: #c6c6c6;  /* Equates to #ddd due to border being off-pixel. */
+}
+
+.blocklyMutatorBackground {
+  fill: #fff;
+  stroke: #ddd;
+  stroke-width: 1;
+}
+
+.blocklyFlyoutBackground {
+  fill: #ddd;
+  fill-opacity: .8;
+}
+
+.blocklyMainWorkspaceScrollbar {
+  z-index: 20;
+}
+
+.blocklyFlyoutScrollbar {
+  z-index: 30;
+}
+
+.blocklyScrollbarHorizontal,
+.blocklyScrollbarVertical {
+  position: absolute;
+  outline: none;
+}
+
+.blocklyScrollbarBackground {
+  opacity: 0;
+}
+
+.blocklyScrollbarHandle {
+  fill: #ccc;
+}
+
+.blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyScrollbarHandle:hover {
+  fill: #bbb;
+}
+
+/* Darken flyout scrollbars due to being on a grey background. */
+/* By contrast, workspace scrollbars are on a white background. */
+.blocklyFlyout .blocklyScrollbarHandle {
+  fill: #bbb;
+}
+
+.blocklyFlyout .blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyFlyout .blocklyScrollbarHandle:hover {
+  fill: #aaa;
+}
+
+.blocklyInvalidInput {
+  background: #faa;
+}
+
+.blocklyVerticalMarker {
+  stroke-width: 3px;
+  fill: rgba(255,255,255,.5);
+  pointer-events: none;
+}
+
+.blocklyComputeCanvas {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+
+.blocklyNoPointerEvents {
+  pointer-events: none;
+}
+
+.blocklyContextMenu {
+  border-radius: 4px;
+  max-height: 100%;
+}
+
+.blocklyDropdownMenu {
+  border-radius: 2px;
+  padding: 0 !important;
+}
+
+.blocklyDropdownMenu .blocklyMenuItem {
+  /* 28px on the left for icon or checkbox. */
+  padding-left: 28px;
+}
+
+/* BiDi override for the resting state. */
+.blocklyDropdownMenu .blocklyMenuItemRtl {
+  /* Flip left/right padding for BiDi. */
+  padding-left: 5px;
+  padding-right: 28px;
+}
+
+.blocklyWidgetDiv .blocklyMenu {
+  background: #fff;
+  border: 1px solid transparent;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+  font: normal 13px Arial, sans-serif;
+  margin: 0;
+  outline: none;
+  padding: 4px 0;
+  position: absolute;
+  overflow-y: auto;
+  overflow-x: hidden;
+  max-height: 100%;
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+.blocklyWidgetDiv .blocklyMenu.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv .blocklyMenu {
+  background: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  border: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  font: normal 13px "Helvetica Neue", Helvetica, sans-serif;
+  outline: none;
+  position: relative;  /* Compatibility with gapi, reset from goog-menu */
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+/* State: resting. */
+.blocklyMenuItem {
+  border: none;
+  color: #000;
+  cursor: pointer;
+  list-style: none;
+  margin: 0;
+  /* 7em on the right for shortcut. */
+  min-width: 7em;
+  padding: 6px 15px;
+  white-space: nowrap;
+}
+
+/* State: disabled. */
+.blocklyMenuItemDisabled {
+  color: #ccc;
+  cursor: inherit;
+}
+
+/* State: hover. */
+.blocklyMenuItemHighlight {
+  background-color: rgba(0,0,0,.1);
+}
+
+/* State: selected/checked. */
+.blocklyMenuItemCheckbox {
+  height: 16px;
+  position: absolute;
+  width: 16px;
+}
+
+.blocklyMenuItemSelected .blocklyMenuItemCheckbox {
+  background: url(https://blockly-demo.appspot.com/static/media/sprites.png) no-repeat -48px -16px;
+  float: left;
+  margin-left: -24px;
+  position: static;  /* Scroll with the menu. */
+}
+
+.blocklyMenuItemRtl .blocklyMenuItemCheckbox {
+  float: right;
+  margin-right: -24px;
+}
+
+
+.blocklyZoom&gt;image, .blocklyZoom&gt;svg&gt;image {
+  opacity: .4;
+}
+
+.blocklyZoom&gt;image:hover, .blocklyZoom&gt;svg&gt;image:hover {
+  opacity: .6;
+}
+
+.blocklyZoom&gt;image:active, .blocklyZoom&gt;svg&gt;image:active {
+  opacity: .8;
+}
+
+
+.blocklyCommentForeignObject {
+  position: relative;
+  z-index: 0;
+}
+
+.blocklyCommentRect {
+  fill: #E7DE8E;
+  stroke: #bcA903;
+  stroke-width: 1px;
+}
+
+.blocklyCommentTarget {
+  fill: transparent;
+  stroke: #bcA903;
+}
+
+.blocklyCommentTargetFocused {
+  fill: none;
+}
+
+.blocklyCommentHandleTarget {
+  fill: none;
+}
+
+.blocklyCommentHandleTargetFocused {
+  fill: transparent;
+}
+
+.blocklyFocused&gt;.blocklyCommentRect {
+  fill: #B9B272;
+  stroke: #B9B272;
+}
+
+.blocklySelected&gt;.blocklyCommentTarget {
+  stroke: #fc3;
+  stroke-width: 3px;
+}
+
+.blocklyCommentDeleteIcon {
+  cursor: pointer;
+  fill: #000;
+  display: none;
+}
+
+.blocklySelected &gt; .blocklyCommentDeleteIcon {
+  display: block;
+}
+
+.blocklyDeleteIconShape {
+  fill: #000;
+  stroke: #000;
+  stroke-width: 1px;
+}
+
+.blocklyDeleteIconShape.blocklyDeleteIconHighlighted {
+  stroke: #fc3;
+}
+
+
+.blocklyCommentTextarea {
+  background-color: #fef49c;
+  border: 0;
+  display: block;
+  margin: 0;
+  outline: 0;
+  padding: 3px;
+  resize: none;
+  text-overflow: hidden;
+}
+
+
+.blocklyAngleCircle {
+  stroke: #444;
+  stroke-width: 1;
+  fill: #ddd;
+  fill-opacity: 0.8;
+}
+
+.blocklyAngleMarks {
+  stroke: #444;
+  stroke-width: 1;
+}
+
+.blocklyAngleGauge {
+  fill: #f88;
+  fill-opacity: 0.8;
+  pointer-events: none;
+}
+
+.blocklyAngleLine {
+  stroke: #f00;
+  stroke-width: 2;
+  stroke-linecap: round;
+  pointer-events: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.blocklyHtmlTextAreaInput {
+  font-family: monospace;
+  resize: none;
+  overflow: hidden;
+  height: 100%;
+  text-align: left;
+}
+
+.blocklyHtmlTextAreaInputOverflowedY {
+  overflow-y: scroll;
+}
+
+
+.blocklyFlyoutButton {
+  fill: #888;
+  cursor: default;
+}
+
+.blocklyFlyoutButtonShadow {
+  fill: #666;
+}
+
+.blocklyFlyoutButton:hover {
+  fill: #aaa;
+}
+
+.blocklyFlyoutLabel {
+  cursor: default;
+}
+
+.blocklyFlyoutLabelBackground {
+  opacity: 0;
+}
+
+
+.blocklyTreeRow:not(.blocklyTreeSelected):hover {
+  background-color: rgba(255, 255, 255, .2);
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyToolboxCategory {
+  margin: 1px 5px 1px 0;
+}
+
+.blocklyToolboxDiv[dir="RTL"][layout="h"] .blocklyToolboxCategory {
+  margin: 1px 0 1px 5px;
+}
+
+.blocklyTreeRow {
+  height: 22px;
+  line-height: 22px;
+  margin-bottom: 3px;
+  padding-right: 8px;
+  white-space: nowrap;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {
+  margin-left: 8px;
+  padding-right: 0;
+}
+
+.blocklyTreeIcon {
+  background-image: url(https://blockly-demo.appspot.com/static/media/sprites.png);
+  height: 16px;
+  vertical-align: middle;
+  visibility: hidden;
+  width: 16px;
+}
+
+.blocklyTreeIconClosed {
+  background-position: -32px -1px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeIconClosed {
+  background-position: 0 -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: -32px -17px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: 0 -17px;
+}
+
+.blocklyTreeIconOpen {
+  background-position: -16px -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconOpen {
+  background-position: -16px -17px;
+}
+
+.blocklyTreeLabel {
+  cursor: default;
+  font: 16px sans-serif;
+  padding: 0 3px;
+  vertical-align: middle;
+}
+
+.blocklyToolboxDelete .blocklyTreeLabel {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyTreeSelected .blocklyTreeLabel {
+  color: #fff;
+}
+
+
+.blocklyTreeSeparator {
+  border-bottom: solid #e5e5e5 1px;
+  height: 0;
+  margin: 5px 0;
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyTreeSeparator {
+  border-right: solid #e5e5e5 1px;
+  border-bottom: none;
+  height: auto;
+  margin: 0 5px 0 5px;
+  padding: 5px 0;
+  width: 0;
+}
+
+
+.blocklyToolboxDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyToolboxGrab {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handclosed.cur"), auto;
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+/* Category tree in Toolbox. */
+.blocklyToolboxDiv {
+  background-color: #ddd;
+  overflow-x: visible;
+  overflow-y: auto;
+  padding: 4px 0 4px 0;
+  position: absolute;
+  z-index: 70;  /* so blocks go under toolbox when dragging */
+  -webkit-tap-highlight-color: transparent;  /* issue #1345 */
+}
+
+.blocklyToolboxContents {
+  display: flex;
+  flex-wrap: wrap;
+  flex-direction: column;
+}
+
+.blocklyToolboxContents:focus {
+  outline: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.fieldColourSliderContainer {
+  padding: 4px;
+}
+.fieldColourSliderContainer hr {
+  border: none;
+  border-top: 1px solid #bbb;
+}
+.fieldColourSliderLabel {
+  display: flex;
+  justify-content: space-between;
+  font: 12pt "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.fieldColourEyedropper {
+  appearance: none;
+  position: relative;
+  border: none;
+  border-radius: 4px;
+  background: transparent;
+  font: inherit;
+  color: inherit;
+  cursor: pointer;
+  width: 100%;
+  margin: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+.fieldColourEyedropper:hover {
+  background: rgba(0,0,0,0.1)
+}
+.fieldColourEyedropper input {
+  opacity: 0;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+.fieldColourEyedropper::before {
+  content: "Eyedropper";
+}
+.fieldColourEyedropper::after {
+  content: "";
+  margin-left: 8px;
+  width: 24px;
+  height: 24px;
+  background: currentColor;
+  pointer-events: none;
+  -webkit-mask-image: var(--customize-dial-symbol);
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  mask-image: var(--customize-dial-symbol);
+  mask-repeat: no-repeat;
+  mask-position: center;
+  --customize-dial-symbol: url('data:image/svg+xml,    &lt;svg xmlns="http://www.w3.org/2000/svg"          width="24px" height="24px"          viewBox="0 0 24 24"&gt;       &lt;path stroke="black" strokewidth="1.414" fill="none"             d="m 13 8 L 6 15 Q 3 18 2 21 Q 0 23 .5 23.5 Q 1 24 3 22                 Q 6 21 9 18 L 16 11"/&gt;       &lt;path fill="black"             d="m 12 7 Q 11 6 12 5 Q 13 4 14 5 Q 15 6 16 5 Q 20 -1 22.5 1.5                 Q 25 4 19 8 Q 18 9 19 10 Q 20 11 19 12 Q 18 13 17 12"/&gt;     &lt;/svg&gt;');
+}
+.fieldColourSlider {
+  -webkit-appearance: none;
+  width: 150px;
+  height: 24px;
+  margin: 4px 8px 24px 8px;
+  padding: 0;
+}
+.fieldColourSlider:last-child {
+  margin-bottom: 4px;
+}
+.fieldColourSlider:focus {
+  outline: none;
+}
+/* Webkit */
+.fieldColourSlider::-webkit-slider-runnable-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  background: #fff;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+  margin-top: -4px;
+}
+/* Firefox */
+.fieldColourSlider::-moz-range-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-moz-range-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+.fieldColourSlider::-moz-focus-outer {
+  /* override the focus border style */
+  border: 0;
+}
+/* IE */
+.fieldColourSlider::-ms-track {
+  background: var(--slider-track-background);
+  border-radius: 12px;
+  width: 100%;
+  height: 24px;
+  /* remove default tick marks */
+  color: transparent;
+}
+.fieldColourSlider::-ms-fill-lower  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-fill-upper  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+
+
+.blocklyMultilineText {
+    fill: #fff !important;
+}
+  
+
+.blocklyMultiselect&gt;image, .blocklyMultiselect&gt;svg&gt;image {
+  opacity: .2;
+}
+
+.blocklyMultiselect&gt;image:hover, .blocklyMultiselect&gt;svg&gt;image:hover {
+  opacity: .4;
+}
+
+.blocklyMultiselect&gt;image:active, .blocklyMultiselect&gt;svg&gt;image:active {
+  opacity: .6;
+}
+
+
+  .controlsIconStyleLightTheme {
+    opacity: 0.2;
+  }
+  .controlsIconStyleLightTheme:hover {
+    opacity: 0.4;
+  }
+  .controlsIconStyleLightTheme:active {
+    opacity: 0.6;
+  }
+  
+
+  .controlsIconStyleDarkTheme {
+    opacity: 0.4;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:hover {
+    opacity: 0.6;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:active {
+    opacity: 0.8;
+    filter: invert(1);
+  }
+  
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diff --git a/doc/main/blockimg/pybricks_blockImuConfigure_EssentialHub_imu.settings_heading_correction.svg b/doc/main/blockimg/pybricks_blockImuConfigure_EssentialHub_imu.settings_heading_correction.svg
new file mode 100644
index 0000000..747b30e
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+  border: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  font: normal 13px "Helvetica Neue", Helvetica, sans-serif;
+  outline: none;
+  position: relative;  /* Compatibility with gapi, reset from goog-menu */
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+/* State: resting. */
+.blocklyMenuItem {
+  border: none;
+  color: #000;
+  cursor: pointer;
+  list-style: none;
+  margin: 0;
+  /* 7em on the right for shortcut. */
+  min-width: 7em;
+  padding: 6px 15px;
+  white-space: nowrap;
+}
+
+/* State: disabled. */
+.blocklyMenuItemDisabled {
+  color: #ccc;
+  cursor: inherit;
+}
+
+/* State: hover. */
+.blocklyMenuItemHighlight {
+  background-color: rgba(0,0,0,.1);
+}
+
+/* State: selected/checked. */
+.blocklyMenuItemCheckbox {
+  height: 16px;
+  position: absolute;
+  width: 16px;
+}
+
+.blocklyMenuItemSelected .blocklyMenuItemCheckbox {
+  background: url(https://blockly-demo.appspot.com/static/media/sprites.png) no-repeat -48px -16px;
+  float: left;
+  margin-left: -24px;
+  position: static;  /* Scroll with the menu. */
+}
+
+.blocklyMenuItemRtl .blocklyMenuItemCheckbox {
+  float: right;
+  margin-right: -24px;
+}
+
+
+.blocklyZoom&gt;image, .blocklyZoom&gt;svg&gt;image {
+  opacity: .4;
+}
+
+.blocklyZoom&gt;image:hover, .blocklyZoom&gt;svg&gt;image:hover {
+  opacity: .6;
+}
+
+.blocklyZoom&gt;image:active, .blocklyZoom&gt;svg&gt;image:active {
+  opacity: .8;
+}
+
+
+.blocklyCommentForeignObject {
+  position: relative;
+  z-index: 0;
+}
+
+.blocklyCommentRect {
+  fill: #E7DE8E;
+  stroke: #bcA903;
+  stroke-width: 1px;
+}
+
+.blocklyCommentTarget {
+  fill: transparent;
+  stroke: #bcA903;
+}
+
+.blocklyCommentTargetFocused {
+  fill: none;
+}
+
+.blocklyCommentHandleTarget {
+  fill: none;
+}
+
+.blocklyCommentHandleTargetFocused {
+  fill: transparent;
+}
+
+.blocklyFocused&gt;.blocklyCommentRect {
+  fill: #B9B272;
+  stroke: #B9B272;
+}
+
+.blocklySelected&gt;.blocklyCommentTarget {
+  stroke: #fc3;
+  stroke-width: 3px;
+}
+
+.blocklyCommentDeleteIcon {
+  cursor: pointer;
+  fill: #000;
+  display: none;
+}
+
+.blocklySelected &gt; .blocklyCommentDeleteIcon {
+  display: block;
+}
+
+.blocklyDeleteIconShape {
+  fill: #000;
+  stroke: #000;
+  stroke-width: 1px;
+}
+
+.blocklyDeleteIconShape.blocklyDeleteIconHighlighted {
+  stroke: #fc3;
+}
+
+
+.blocklyCommentTextarea {
+  background-color: #fef49c;
+  border: 0;
+  display: block;
+  margin: 0;
+  outline: 0;
+  padding: 3px;
+  resize: none;
+  text-overflow: hidden;
+}
+
+
+.blocklyAngleCircle {
+  stroke: #444;
+  stroke-width: 1;
+  fill: #ddd;
+  fill-opacity: 0.8;
+}
+
+.blocklyAngleMarks {
+  stroke: #444;
+  stroke-width: 1;
+}
+
+.blocklyAngleGauge {
+  fill: #f88;
+  fill-opacity: 0.8;
+  pointer-events: none;
+}
+
+.blocklyAngleLine {
+  stroke: #f00;
+  stroke-width: 2;
+  stroke-linecap: round;
+  pointer-events: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.blocklyHtmlTextAreaInput {
+  font-family: monospace;
+  resize: none;
+  overflow: hidden;
+  height: 100%;
+  text-align: left;
+}
+
+.blocklyHtmlTextAreaInputOverflowedY {
+  overflow-y: scroll;
+}
+
+
+.blocklyFlyoutButton {
+  fill: #888;
+  cursor: default;
+}
+
+.blocklyFlyoutButtonShadow {
+  fill: #666;
+}
+
+.blocklyFlyoutButton:hover {
+  fill: #aaa;
+}
+
+.blocklyFlyoutLabel {
+  cursor: default;
+}
+
+.blocklyFlyoutLabelBackground {
+  opacity: 0;
+}
+
+
+.blocklyTreeRow:not(.blocklyTreeSelected):hover {
+  background-color: rgba(255, 255, 255, .2);
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyToolboxCategory {
+  margin: 1px 5px 1px 0;
+}
+
+.blocklyToolboxDiv[dir="RTL"][layout="h"] .blocklyToolboxCategory {
+  margin: 1px 0 1px 5px;
+}
+
+.blocklyTreeRow {
+  height: 22px;
+  line-height: 22px;
+  margin-bottom: 3px;
+  padding-right: 8px;
+  white-space: nowrap;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {
+  margin-left: 8px;
+  padding-right: 0;
+}
+
+.blocklyTreeIcon {
+  background-image: url(https://blockly-demo.appspot.com/static/media/sprites.png);
+  height: 16px;
+  vertical-align: middle;
+  visibility: hidden;
+  width: 16px;
+}
+
+.blocklyTreeIconClosed {
+  background-position: -32px -1px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeIconClosed {
+  background-position: 0 -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: -32px -17px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: 0 -17px;
+}
+
+.blocklyTreeIconOpen {
+  background-position: -16px -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconOpen {
+  background-position: -16px -17px;
+}
+
+.blocklyTreeLabel {
+  cursor: default;
+  font: 16px sans-serif;
+  padding: 0 3px;
+  vertical-align: middle;
+}
+
+.blocklyToolboxDelete .blocklyTreeLabel {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyTreeSelected .blocklyTreeLabel {
+  color: #fff;
+}
+
+
+.blocklyTreeSeparator {
+  border-bottom: solid #e5e5e5 1px;
+  height: 0;
+  margin: 5px 0;
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyTreeSeparator {
+  border-right: solid #e5e5e5 1px;
+  border-bottom: none;
+  height: auto;
+  margin: 0 5px 0 5px;
+  padding: 5px 0;
+  width: 0;
+}
+
+
+.blocklyToolboxDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyToolboxGrab {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handclosed.cur"), auto;
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+/* Category tree in Toolbox. */
+.blocklyToolboxDiv {
+  background-color: #ddd;
+  overflow-x: visible;
+  overflow-y: auto;
+  padding: 4px 0 4px 0;
+  position: absolute;
+  z-index: 70;  /* so blocks go under toolbox when dragging */
+  -webkit-tap-highlight-color: transparent;  /* issue #1345 */
+}
+
+.blocklyToolboxContents {
+  display: flex;
+  flex-wrap: wrap;
+  flex-direction: column;
+}
+
+.blocklyToolboxContents:focus {
+  outline: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.fieldColourSliderContainer {
+  padding: 4px;
+}
+.fieldColourSliderContainer hr {
+  border: none;
+  border-top: 1px solid #bbb;
+}
+.fieldColourSliderLabel {
+  display: flex;
+  justify-content: space-between;
+  font: 12pt "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.fieldColourEyedropper {
+  appearance: none;
+  position: relative;
+  border: none;
+  border-radius: 4px;
+  background: transparent;
+  font: inherit;
+  color: inherit;
+  cursor: pointer;
+  width: 100%;
+  margin: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+.fieldColourEyedropper:hover {
+  background: rgba(0,0,0,0.1)
+}
+.fieldColourEyedropper input {
+  opacity: 0;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+.fieldColourEyedropper::before {
+  content: "Eyedropper";
+}
+.fieldColourEyedropper::after {
+  content: "";
+  margin-left: 8px;
+  width: 24px;
+  height: 24px;
+  background: currentColor;
+  pointer-events: none;
+  -webkit-mask-image: var(--customize-dial-symbol);
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  mask-image: var(--customize-dial-symbol);
+  mask-repeat: no-repeat;
+  mask-position: center;
+  --customize-dial-symbol: url('data:image/svg+xml,    &lt;svg xmlns="http://www.w3.org/2000/svg"          width="24px" height="24px"          viewBox="0 0 24 24"&gt;       &lt;path stroke="black" strokewidth="1.414" fill="none"             d="m 13 8 L 6 15 Q 3 18 2 21 Q 0 23 .5 23.5 Q 1 24 3 22                 Q 6 21 9 18 L 16 11"/&gt;       &lt;path fill="black"             d="m 12 7 Q 11 6 12 5 Q 13 4 14 5 Q 15 6 16 5 Q 20 -1 22.5 1.5                 Q 25 4 19 8 Q 18 9 19 10 Q 20 11 19 12 Q 18 13 17 12"/&gt;     &lt;/svg&gt;');
+}
+.fieldColourSlider {
+  -webkit-appearance: none;
+  width: 150px;
+  height: 24px;
+  margin: 4px 8px 24px 8px;
+  padding: 0;
+}
+.fieldColourSlider:last-child {
+  margin-bottom: 4px;
+}
+.fieldColourSlider:focus {
+  outline: none;
+}
+/* Webkit */
+.fieldColourSlider::-webkit-slider-runnable-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  background: #fff;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+  margin-top: -4px;
+}
+/* Firefox */
+.fieldColourSlider::-moz-range-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-moz-range-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+.fieldColourSlider::-moz-focus-outer {
+  /* override the focus border style */
+  border: 0;
+}
+/* IE */
+.fieldColourSlider::-ms-track {
+  background: var(--slider-track-background);
+  border-radius: 12px;
+  width: 100%;
+  height: 24px;
+  /* remove default tick marks */
+  color: transparent;
+}
+.fieldColourSlider::-ms-fill-lower  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-fill-upper  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+
+
+.blocklyMultilineText {
+    fill: #fff !important;
+}
+  
+
+.blocklyMultiselect&gt;image, .blocklyMultiselect&gt;svg&gt;image {
+  opacity: .2;
+}
+
+.blocklyMultiselect&gt;image:hover, .blocklyMultiselect&gt;svg&gt;image:hover {
+  opacity: .4;
+}
+
+.blocklyMultiselect&gt;image:active, .blocklyMultiselect&gt;svg&gt;image:active {
+  opacity: .6;
+}
+
+
+  .controlsIconStyleLightTheme {
+    opacity: 0.2;
+  }
+  .controlsIconStyleLightTheme:hover {
+    opacity: 0.4;
+  }
+  .controlsIconStyleLightTheme:active {
+    opacity: 0.6;
+  }
+  
+
+  .controlsIconStyleDarkTheme {
+    opacity: 0.4;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:hover {
+    opacity: 0.6;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:active {
+    opacity: 0.8;
+    filter: invert(1);
+  }
+  
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new file mode 100644
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+fill: url(#blocklyDisabledPattern462829236637911)
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyInsertionMarker&gt;.blocklyPath {
+fill-opacity: 0.2;
+stroke: none;
+}
+
+.blocklySvg {
+  background-color: #fff;
+  outline: none;
+  overflow: hidden;  /* IE overflows by default. */
+  position: absolute;
+  display: block;
+}
+
+.blocklyWidgetDiv {
+  display: none;
+  position: absolute;
+  z-index: 99999;  /* big value for bootstrap3 compatibility */
+}
+
+.injectionDiv {
+  height: 100%;
+  position: relative;
+  overflow: hidden;  /* So blocks in drag surface disappear at edges */
+  touch-action: none;
+}
+
+.blocklyNonSelectable {
+  user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+}
+
+.blocklyBlockCanvas.blocklyCanvasTransitioning,
+.blocklyBubbleCanvas.blocklyCanvasTransitioning {
+  transition: transform .5s;
+}
+
+.blocklyTooltipDiv {
+  background-color: #ffffc7;
+  border: 1px solid #ddc;
+  box-shadow: 4px 4px 20px 1px rgba(0,0,0,.15);
+  color: #000;
+  display: none;
+  font: 9pt sans-serif;
+  opacity: .9;
+  padding: 2px;
+  position: absolute;
+  z-index: 100000;  /* big value for bootstrap3 compatibility */
+}
+
+.blocklyDropDownDiv {
+  position: absolute;
+  left: 0;
+  top: 0;
+  z-index: 1000;
+  display: none;
+  border: 1px solid;
+  border-color: #dadce0;
+  background-color: #fff;
+  border-radius: 2px;
+  padding: 4px;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownContent {
+  max-height: 300px;  /* @todo: spec for maximum height. */
+  overflow: auto;
+  overflow-x: hidden;
+  position: relative;
+}
+
+.blocklyDropDownArrow {
+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 16px;
+  height: 16px;
+  z-index: -1;
+  background-color: inherit;
+  border-color: inherit;
+}
+
+.blocklyDropDownButton {
+  display: inline-block;
+  float: left;
+  padding: 0;
+  margin: 4px;
+  border-radius: 4px;
+  outline: none;
+  border: 1px solid;
+  transition: box-shadow .1s;
+  cursor: pointer;
+}
+
+.blocklyArrowTop {
+  border-top: 1px solid;
+  border-left: 1px solid;
+  border-top-left-radius: 4px;
+  border-color: inherit;
+}
+
+.blocklyArrowBottom {
+  border-bottom: 1px solid;
+  border-right: 1px solid;
+  border-bottom-right-radius: 4px;
+  border-color: inherit;
+}
+
+.blocklyResizeSE {
+  cursor: se-resize;
+  fill: #aaa;
+}
+
+.blocklyResizeSW {
+  cursor: sw-resize;
+  fill: #aaa;
+}
+
+.blocklyResizeLine {
+  stroke: #515A5A;
+  stroke-width: 1;
+}
+
+.blocklyHighlightedConnectionPath {
+  fill: none;
+  stroke: #fc3;
+  stroke-width: 4px;
+}
+
+.blocklyPathLight {
+  fill: none;
+  stroke-linecap: round;
+  stroke-width: 1;
+}
+
+.blocklySelected&gt;.blocklyPathLight {
+  display: none;
+}
+
+.blocklyDraggable {
+  cursor: grab;
+  cursor: -webkit-grab;
+}
+
+.blocklyDragging {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+  /* Changes cursor on mouse down. Not effective in Firefox because of
+     https://bugzilla.mozilla.org/show_bug.cgi?id=771241 */
+.blocklyDraggable:active {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+.blocklyDragging.blocklyDraggingDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyDragging&gt;.blocklyPath,
+.blocklyDragging&gt;.blocklyPathLight {
+  fill-opacity: .8;
+  stroke-opacity: .8;
+}
+
+.blocklyDragging&gt;.blocklyPathDark {
+  display: none;
+}
+
+.blocklyDisabled&gt;.blocklyPath {
+  fill-opacity: .5;
+  stroke-opacity: .5;
+}
+
+.blocklyDisabled&gt;.blocklyPathLight,
+.blocklyDisabled&gt;.blocklyPathDark {
+  display: none;
+}
+
+.blocklyInsertionMarker&gt;.blocklyPath,
+.blocklyInsertionMarker&gt;.blocklyPathLight,
+.blocklyInsertionMarker&gt;.blocklyPathDark {
+  fill-opacity: .2;
+  stroke: none;
+}
+
+.blocklyMultilineText {
+  font-family: monospace;
+}
+
+.blocklyNonEditableText&gt;text {
+  pointer-events: none;
+}
+
+.blocklyFlyout {
+  position: absolute;
+  z-index: 20;
+}
+
+.blocklyText text {
+  cursor: default;
+}
+
+/*
+  Don't allow users to select text.  It gets annoying when trying to
+  drag a block and selected text moves instead.
+*/
+.blocklySvg text {
+  user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+  cursor: inherit;
+}
+
+.blocklyHidden {
+  display: none;
+}
+
+.blocklyFieldDropdown:not(.blocklyHidden) {
+  display: block;
+}
+
+.blocklyIconGroup {
+  cursor: default;
+}
+
+.blocklyIconGroup:not(:hover),
+.blocklyIconGroupReadonly {
+  opacity: .6;
+}
+
+.blocklyIconShape {
+  fill: #00f;
+  stroke: #fff;
+  stroke-width: 1px;
+}
+
+.blocklyIconSymbol {
+  fill: #fff;
+}
+
+.blocklyMinimalBody {
+  margin: 0;
+  padding: 0;
+}
+
+.blocklyHtmlInput {
+  border: none;
+  border-radius: 4px;
+  height: 100%;
+  margin: 0;
+  outline: none;
+  padding: 0;
+  width: 100%;
+  text-align: center;
+  display: block;
+  box-sizing: border-box;
+}
+
+/* Remove the increase and decrease arrows on the field number editor */
+input.blocklyHtmlInput[type=number]::-webkit-inner-spin-button,
+input.blocklyHtmlInput[type=number]::-webkit-outer-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+input[type=number] {
+  -moz-appearance: textfield;
+}
+
+.blocklyMainBackground {
+  stroke-width: 1;
+  stroke: #c6c6c6;  /* Equates to #ddd due to border being off-pixel. */
+}
+
+.blocklyMutatorBackground {
+  fill: #fff;
+  stroke: #ddd;
+  stroke-width: 1;
+}
+
+.blocklyFlyoutBackground {
+  fill: #ddd;
+  fill-opacity: .8;
+}
+
+.blocklyMainWorkspaceScrollbar {
+  z-index: 20;
+}
+
+.blocklyFlyoutScrollbar {
+  z-index: 30;
+}
+
+.blocklyScrollbarHorizontal,
+.blocklyScrollbarVertical {
+  position: absolute;
+  outline: none;
+}
+
+.blocklyScrollbarBackground {
+  opacity: 0;
+}
+
+.blocklyScrollbarHandle {
+  fill: #ccc;
+}
+
+.blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyScrollbarHandle:hover {
+  fill: #bbb;
+}
+
+/* Darken flyout scrollbars due to being on a grey background. */
+/* By contrast, workspace scrollbars are on a white background. */
+.blocklyFlyout .blocklyScrollbarHandle {
+  fill: #bbb;
+}
+
+.blocklyFlyout .blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyFlyout .blocklyScrollbarHandle:hover {
+  fill: #aaa;
+}
+
+.blocklyInvalidInput {
+  background: #faa;
+}
+
+.blocklyVerticalMarker {
+  stroke-width: 3px;
+  fill: rgba(255,255,255,.5);
+  pointer-events: none;
+}
+
+.blocklyComputeCanvas {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+
+.blocklyNoPointerEvents {
+  pointer-events: none;
+}
+
+.blocklyContextMenu {
+  border-radius: 4px;
+  max-height: 100%;
+}
+
+.blocklyDropdownMenu {
+  border-radius: 2px;
+  padding: 0 !important;
+}
+
+.blocklyDropdownMenu .blocklyMenuItem {
+  /* 28px on the left for icon or checkbox. */
+  padding-left: 28px;
+}
+
+/* BiDi override for the resting state. */
+.blocklyDropdownMenu .blocklyMenuItemRtl {
+  /* Flip left/right padding for BiDi. */
+  padding-left: 5px;
+  padding-right: 28px;
+}
+
+.blocklyWidgetDiv .blocklyMenu {
+  background: #fff;
+  border: 1px solid transparent;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+  font: normal 13px Arial, sans-serif;
+  margin: 0;
+  outline: none;
+  padding: 4px 0;
+  position: absolute;
+  overflow-y: auto;
+  overflow-x: hidden;
+  max-height: 100%;
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+.blocklyWidgetDiv .blocklyMenu.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv .blocklyMenu {
+  background: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  border: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  font: normal 13px "Helvetica Neue", Helvetica, sans-serif;
+  outline: none;
+  position: relative;  /* Compatibility with gapi, reset from goog-menu */
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+/* State: resting. */
+.blocklyMenuItem {
+  border: none;
+  color: #000;
+  cursor: pointer;
+  list-style: none;
+  margin: 0;
+  /* 7em on the right for shortcut. */
+  min-width: 7em;
+  padding: 6px 15px;
+  white-space: nowrap;
+}
+
+/* State: disabled. */
+.blocklyMenuItemDisabled {
+  color: #ccc;
+  cursor: inherit;
+}
+
+/* State: hover. */
+.blocklyMenuItemHighlight {
+  background-color: rgba(0,0,0,.1);
+}
+
+/* State: selected/checked. */
+.blocklyMenuItemCheckbox {
+  height: 16px;
+  position: absolute;
+  width: 16px;
+}
+
+.blocklyMenuItemSelected .blocklyMenuItemCheckbox {
+  background: url(https://blockly-demo.appspot.com/static/media/sprites.png) no-repeat -48px -16px;
+  float: left;
+  margin-left: -24px;
+  position: static;  /* Scroll with the menu. */
+}
+
+.blocklyMenuItemRtl .blocklyMenuItemCheckbox {
+  float: right;
+  margin-right: -24px;
+}
+
+
+.blocklyZoom&gt;image, .blocklyZoom&gt;svg&gt;image {
+  opacity: .4;
+}
+
+.blocklyZoom&gt;image:hover, .blocklyZoom&gt;svg&gt;image:hover {
+  opacity: .6;
+}
+
+.blocklyZoom&gt;image:active, .blocklyZoom&gt;svg&gt;image:active {
+  opacity: .8;
+}
+
+
+.blocklyCommentForeignObject {
+  position: relative;
+  z-index: 0;
+}
+
+.blocklyCommentRect {
+  fill: #E7DE8E;
+  stroke: #bcA903;
+  stroke-width: 1px;
+}
+
+.blocklyCommentTarget {
+  fill: transparent;
+  stroke: #bcA903;
+}
+
+.blocklyCommentTargetFocused {
+  fill: none;
+}
+
+.blocklyCommentHandleTarget {
+  fill: none;
+}
+
+.blocklyCommentHandleTargetFocused {
+  fill: transparent;
+}
+
+.blocklyFocused&gt;.blocklyCommentRect {
+  fill: #B9B272;
+  stroke: #B9B272;
+}
+
+.blocklySelected&gt;.blocklyCommentTarget {
+  stroke: #fc3;
+  stroke-width: 3px;
+}
+
+.blocklyCommentDeleteIcon {
+  cursor: pointer;
+  fill: #000;
+  display: none;
+}
+
+.blocklySelected &gt; .blocklyCommentDeleteIcon {
+  display: block;
+}
+
+.blocklyDeleteIconShape {
+  fill: #000;
+  stroke: #000;
+  stroke-width: 1px;
+}
+
+.blocklyDeleteIconShape.blocklyDeleteIconHighlighted {
+  stroke: #fc3;
+}
+
+
+.blocklyCommentTextarea {
+  background-color: #fef49c;
+  border: 0;
+  display: block;
+  margin: 0;
+  outline: 0;
+  padding: 3px;
+  resize: none;
+  text-overflow: hidden;
+}
+
+
+.blocklyAngleCircle {
+  stroke: #444;
+  stroke-width: 1;
+  fill: #ddd;
+  fill-opacity: 0.8;
+}
+
+.blocklyAngleMarks {
+  stroke: #444;
+  stroke-width: 1;
+}
+
+.blocklyAngleGauge {
+  fill: #f88;
+  fill-opacity: 0.8;
+  pointer-events: none;
+}
+
+.blocklyAngleLine {
+  stroke: #f00;
+  stroke-width: 2;
+  stroke-linecap: round;
+  pointer-events: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.blocklyHtmlTextAreaInput {
+  font-family: monospace;
+  resize: none;
+  overflow: hidden;
+  height: 100%;
+  text-align: left;
+}
+
+.blocklyHtmlTextAreaInputOverflowedY {
+  overflow-y: scroll;
+}
+
+
+.blocklyFlyoutButton {
+  fill: #888;
+  cursor: default;
+}
+
+.blocklyFlyoutButtonShadow {
+  fill: #666;
+}
+
+.blocklyFlyoutButton:hover {
+  fill: #aaa;
+}
+
+.blocklyFlyoutLabel {
+  cursor: default;
+}
+
+.blocklyFlyoutLabelBackground {
+  opacity: 0;
+}
+
+
+.blocklyTreeRow:not(.blocklyTreeSelected):hover {
+  background-color: rgba(255, 255, 255, .2);
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyToolboxCategory {
+  margin: 1px 5px 1px 0;
+}
+
+.blocklyToolboxDiv[dir="RTL"][layout="h"] .blocklyToolboxCategory {
+  margin: 1px 0 1px 5px;
+}
+
+.blocklyTreeRow {
+  height: 22px;
+  line-height: 22px;
+  margin-bottom: 3px;
+  padding-right: 8px;
+  white-space: nowrap;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {
+  margin-left: 8px;
+  padding-right: 0;
+}
+
+.blocklyTreeIcon {
+  background-image: url(https://blockly-demo.appspot.com/static/media/sprites.png);
+  height: 16px;
+  vertical-align: middle;
+  visibility: hidden;
+  width: 16px;
+}
+
+.blocklyTreeIconClosed {
+  background-position: -32px -1px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeIconClosed {
+  background-position: 0 -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: -32px -17px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: 0 -17px;
+}
+
+.blocklyTreeIconOpen {
+  background-position: -16px -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconOpen {
+  background-position: -16px -17px;
+}
+
+.blocklyTreeLabel {
+  cursor: default;
+  font: 16px sans-serif;
+  padding: 0 3px;
+  vertical-align: middle;
+}
+
+.blocklyToolboxDelete .blocklyTreeLabel {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyTreeSelected .blocklyTreeLabel {
+  color: #fff;
+}
+
+
+.blocklyTreeSeparator {
+  border-bottom: solid #e5e5e5 1px;
+  height: 0;
+  margin: 5px 0;
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyTreeSeparator {
+  border-right: solid #e5e5e5 1px;
+  border-bottom: none;
+  height: auto;
+  margin: 0 5px 0 5px;
+  padding: 5px 0;
+  width: 0;
+}
+
+
+.blocklyToolboxDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyToolboxGrab {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handclosed.cur"), auto;
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+/* Category tree in Toolbox. */
+.blocklyToolboxDiv {
+  background-color: #ddd;
+  overflow-x: visible;
+  overflow-y: auto;
+  padding: 4px 0 4px 0;
+  position: absolute;
+  z-index: 70;  /* so blocks go under toolbox when dragging */
+  -webkit-tap-highlight-color: transparent;  /* issue #1345 */
+}
+
+.blocklyToolboxContents {
+  display: flex;
+  flex-wrap: wrap;
+  flex-direction: column;
+}
+
+.blocklyToolboxContents:focus {
+  outline: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.fieldColourSliderContainer {
+  padding: 4px;
+}
+.fieldColourSliderContainer hr {
+  border: none;
+  border-top: 1px solid #bbb;
+}
+.fieldColourSliderLabel {
+  display: flex;
+  justify-content: space-between;
+  font: 12pt "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.fieldColourEyedropper {
+  appearance: none;
+  position: relative;
+  border: none;
+  border-radius: 4px;
+  background: transparent;
+  font: inherit;
+  color: inherit;
+  cursor: pointer;
+  width: 100%;
+  margin: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+.fieldColourEyedropper:hover {
+  background: rgba(0,0,0,0.1)
+}
+.fieldColourEyedropper input {
+  opacity: 0;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+.fieldColourEyedropper::before {
+  content: "Eyedropper";
+}
+.fieldColourEyedropper::after {
+  content: "";
+  margin-left: 8px;
+  width: 24px;
+  height: 24px;
+  background: currentColor;
+  pointer-events: none;
+  -webkit-mask-image: var(--customize-dial-symbol);
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  mask-image: var(--customize-dial-symbol);
+  mask-repeat: no-repeat;
+  mask-position: center;
+  --customize-dial-symbol: url('data:image/svg+xml,    &lt;svg xmlns="http://www.w3.org/2000/svg"          width="24px" height="24px"          viewBox="0 0 24 24"&gt;       &lt;path stroke="black" strokewidth="1.414" fill="none"             d="m 13 8 L 6 15 Q 3 18 2 21 Q 0 23 .5 23.5 Q 1 24 3 22                 Q 6 21 9 18 L 16 11"/&gt;       &lt;path fill="black"             d="m 12 7 Q 11 6 12 5 Q 13 4 14 5 Q 15 6 16 5 Q 20 -1 22.5 1.5                 Q 25 4 19 8 Q 18 9 19 10 Q 20 11 19 12 Q 18 13 17 12"/&gt;     &lt;/svg&gt;');
+}
+.fieldColourSlider {
+  -webkit-appearance: none;
+  width: 150px;
+  height: 24px;
+  margin: 4px 8px 24px 8px;
+  padding: 0;
+}
+.fieldColourSlider:last-child {
+  margin-bottom: 4px;
+}
+.fieldColourSlider:focus {
+  outline: none;
+}
+/* Webkit */
+.fieldColourSlider::-webkit-slider-runnable-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  background: #fff;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+  margin-top: -4px;
+}
+/* Firefox */
+.fieldColourSlider::-moz-range-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-moz-range-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+.fieldColourSlider::-moz-focus-outer {
+  /* override the focus border style */
+  border: 0;
+}
+/* IE */
+.fieldColourSlider::-ms-track {
+  background: var(--slider-track-background);
+  border-radius: 12px;
+  width: 100%;
+  height: 24px;
+  /* remove default tick marks */
+  color: transparent;
+}
+.fieldColourSlider::-ms-fill-lower  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-fill-upper  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+
+
+.blocklyMultilineText {
+    fill: #fff !important;
+}
+  
+
+.blocklyMultiselect&gt;image, .blocklyMultiselect&gt;svg&gt;image {
+  opacity: .2;
+}
+
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diff --git a/doc/main/blockimg/pybricks_blockImuConfigure_InventorHub_imu.settings_heading_correction.svg b/doc/main/blockimg/pybricks_blockImuConfigure_InventorHub_imu.settings_heading_correction.svg
new file mode 100644
index 0000000..ba947b7
--- /dev/null
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+  padding-left: 5px;
+  padding-right: 28px;
+}
+
+.blocklyWidgetDiv .blocklyMenu {
+  background: #fff;
+  border: 1px solid transparent;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+  font: normal 13px Arial, sans-serif;
+  margin: 0;
+  outline: none;
+  padding: 4px 0;
+  position: absolute;
+  overflow-y: auto;
+  overflow-x: hidden;
+  max-height: 100%;
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+.blocklyWidgetDiv .blocklyMenu.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv .blocklyMenu {
+  background: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  border: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  font: normal 13px "Helvetica Neue", Helvetica, sans-serif;
+  outline: none;
+  position: relative;  /* Compatibility with gapi, reset from goog-menu */
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+/* State: resting. */
+.blocklyMenuItem {
+  border: none;
+  color: #000;
+  cursor: pointer;
+  list-style: none;
+  margin: 0;
+  /* 7em on the right for shortcut. */
+  min-width: 7em;
+  padding: 6px 15px;
+  white-space: nowrap;
+}
+
+/* State: disabled. */
+.blocklyMenuItemDisabled {
+  color: #ccc;
+  cursor: inherit;
+}
+
+/* State: hover. */
+.blocklyMenuItemHighlight {
+  background-color: rgba(0,0,0,.1);
+}
+
+/* State: selected/checked. */
+.blocklyMenuItemCheckbox {
+  height: 16px;
+  position: absolute;
+  width: 16px;
+}
+
+.blocklyMenuItemSelected .blocklyMenuItemCheckbox {
+  background: url(https://blockly-demo.appspot.com/static/media/sprites.png) no-repeat -48px -16px;
+  float: left;
+  margin-left: -24px;
+  position: static;  /* Scroll with the menu. */
+}
+
+.blocklyMenuItemRtl .blocklyMenuItemCheckbox {
+  float: right;
+  margin-right: -24px;
+}
+
+
+.blocklyZoom&gt;image, .blocklyZoom&gt;svg&gt;image {
+  opacity: .4;
+}
+
+.blocklyZoom&gt;image:hover, .blocklyZoom&gt;svg&gt;image:hover {
+  opacity: .6;
+}
+
+.blocklyZoom&gt;image:active, .blocklyZoom&gt;svg&gt;image:active {
+  opacity: .8;
+}
+
+
+.blocklyCommentForeignObject {
+  position: relative;
+  z-index: 0;
+}
+
+.blocklyCommentRect {
+  fill: #E7DE8E;
+  stroke: #bcA903;
+  stroke-width: 1px;
+}
+
+.blocklyCommentTarget {
+  fill: transparent;
+  stroke: #bcA903;
+}
+
+.blocklyCommentTargetFocused {
+  fill: none;
+}
+
+.blocklyCommentHandleTarget {
+  fill: none;
+}
+
+.blocklyCommentHandleTargetFocused {
+  fill: transparent;
+}
+
+.blocklyFocused&gt;.blocklyCommentRect {
+  fill: #B9B272;
+  stroke: #B9B272;
+}
+
+.blocklySelected&gt;.blocklyCommentTarget {
+  stroke: #fc3;
+  stroke-width: 3px;
+}
+
+.blocklyCommentDeleteIcon {
+  cursor: pointer;
+  fill: #000;
+  display: none;
+}
+
+.blocklySelected &gt; .blocklyCommentDeleteIcon {
+  display: block;
+}
+
+.blocklyDeleteIconShape {
+  fill: #000;
+  stroke: #000;
+  stroke-width: 1px;
+}
+
+.blocklyDeleteIconShape.blocklyDeleteIconHighlighted {
+  stroke: #fc3;
+}
+
+
+.blocklyCommentTextarea {
+  background-color: #fef49c;
+  border: 0;
+  display: block;
+  margin: 0;
+  outline: 0;
+  padding: 3px;
+  resize: none;
+  text-overflow: hidden;
+}
+
+
+.blocklyAngleCircle {
+  stroke: #444;
+  stroke-width: 1;
+  fill: #ddd;
+  fill-opacity: 0.8;
+}
+
+.blocklyAngleMarks {
+  stroke: #444;
+  stroke-width: 1;
+}
+
+.blocklyAngleGauge {
+  fill: #f88;
+  fill-opacity: 0.8;
+  pointer-events: none;
+}
+
+.blocklyAngleLine {
+  stroke: #f00;
+  stroke-width: 2;
+  stroke-linecap: round;
+  pointer-events: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.blocklyHtmlTextAreaInput {
+  font-family: monospace;
+  resize: none;
+  overflow: hidden;
+  height: 100%;
+  text-align: left;
+}
+
+.blocklyHtmlTextAreaInputOverflowedY {
+  overflow-y: scroll;
+}
+
+
+.blocklyFlyoutButton {
+  fill: #888;
+  cursor: default;
+}
+
+.blocklyFlyoutButtonShadow {
+  fill: #666;
+}
+
+.blocklyFlyoutButton:hover {
+  fill: #aaa;
+}
+
+.blocklyFlyoutLabel {
+  cursor: default;
+}
+
+.blocklyFlyoutLabelBackground {
+  opacity: 0;
+}
+
+
+.blocklyTreeRow:not(.blocklyTreeSelected):hover {
+  background-color: rgba(255, 255, 255, .2);
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyToolboxCategory {
+  margin: 1px 5px 1px 0;
+}
+
+.blocklyToolboxDiv[dir="RTL"][layout="h"] .blocklyToolboxCategory {
+  margin: 1px 0 1px 5px;
+}
+
+.blocklyTreeRow {
+  height: 22px;
+  line-height: 22px;
+  margin-bottom: 3px;
+  padding-right: 8px;
+  white-space: nowrap;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {
+  margin-left: 8px;
+  padding-right: 0;
+}
+
+.blocklyTreeIcon {
+  background-image: url(https://blockly-demo.appspot.com/static/media/sprites.png);
+  height: 16px;
+  vertical-align: middle;
+  visibility: hidden;
+  width: 16px;
+}
+
+.blocklyTreeIconClosed {
+  background-position: -32px -1px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeIconClosed {
+  background-position: 0 -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: -32px -17px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: 0 -17px;
+}
+
+.blocklyTreeIconOpen {
+  background-position: -16px -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconOpen {
+  background-position: -16px -17px;
+}
+
+.blocklyTreeLabel {
+  cursor: default;
+  font: 16px sans-serif;
+  padding: 0 3px;
+  vertical-align: middle;
+}
+
+.blocklyToolboxDelete .blocklyTreeLabel {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyTreeSelected .blocklyTreeLabel {
+  color: #fff;
+}
+
+
+.blocklyTreeSeparator {
+  border-bottom: solid #e5e5e5 1px;
+  height: 0;
+  margin: 5px 0;
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyTreeSeparator {
+  border-right: solid #e5e5e5 1px;
+  border-bottom: none;
+  height: auto;
+  margin: 0 5px 0 5px;
+  padding: 5px 0;
+  width: 0;
+}
+
+
+.blocklyToolboxDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyToolboxGrab {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handclosed.cur"), auto;
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+/* Category tree in Toolbox. */
+.blocklyToolboxDiv {
+  background-color: #ddd;
+  overflow-x: visible;
+  overflow-y: auto;
+  padding: 4px 0 4px 0;
+  position: absolute;
+  z-index: 70;  /* so blocks go under toolbox when dragging */
+  -webkit-tap-highlight-color: transparent;  /* issue #1345 */
+}
+
+.blocklyToolboxContents {
+  display: flex;
+  flex-wrap: wrap;
+  flex-direction: column;
+}
+
+.blocklyToolboxContents:focus {
+  outline: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.fieldColourSliderContainer {
+  padding: 4px;
+}
+.fieldColourSliderContainer hr {
+  border: none;
+  border-top: 1px solid #bbb;
+}
+.fieldColourSliderLabel {
+  display: flex;
+  justify-content: space-between;
+  font: 12pt "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.fieldColourEyedropper {
+  appearance: none;
+  position: relative;
+  border: none;
+  border-radius: 4px;
+  background: transparent;
+  font: inherit;
+  color: inherit;
+  cursor: pointer;
+  width: 100%;
+  margin: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+.fieldColourEyedropper:hover {
+  background: rgba(0,0,0,0.1)
+}
+.fieldColourEyedropper input {
+  opacity: 0;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+.fieldColourEyedropper::before {
+  content: "Eyedropper";
+}
+.fieldColourEyedropper::after {
+  content: "";
+  margin-left: 8px;
+  width: 24px;
+  height: 24px;
+  background: currentColor;
+  pointer-events: none;
+  -webkit-mask-image: var(--customize-dial-symbol);
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  mask-image: var(--customize-dial-symbol);
+  mask-repeat: no-repeat;
+  mask-position: center;
+  --customize-dial-symbol: url('data:image/svg+xml,    &lt;svg xmlns="http://www.w3.org/2000/svg"          width="24px" height="24px"          viewBox="0 0 24 24"&gt;       &lt;path stroke="black" strokewidth="1.414" fill="none"             d="m 13 8 L 6 15 Q 3 18 2 21 Q 0 23 .5 23.5 Q 1 24 3 22                 Q 6 21 9 18 L 16 11"/&gt;       &lt;path fill="black"             d="m 12 7 Q 11 6 12 5 Q 13 4 14 5 Q 15 6 16 5 Q 20 -1 22.5 1.5                 Q 25 4 19 8 Q 18 9 19 10 Q 20 11 19 12 Q 18 13 17 12"/&gt;     &lt;/svg&gt;');
+}
+.fieldColourSlider {
+  -webkit-appearance: none;
+  width: 150px;
+  height: 24px;
+  margin: 4px 8px 24px 8px;
+  padding: 0;
+}
+.fieldColourSlider:last-child {
+  margin-bottom: 4px;
+}
+.fieldColourSlider:focus {
+  outline: none;
+}
+/* Webkit */
+.fieldColourSlider::-webkit-slider-runnable-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  background: #fff;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+  margin-top: -4px;
+}
+/* Firefox */
+.fieldColourSlider::-moz-range-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-moz-range-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+.fieldColourSlider::-moz-focus-outer {
+  /* override the focus border style */
+  border: 0;
+}
+/* IE */
+.fieldColourSlider::-ms-track {
+  background: var(--slider-track-background);
+  border-radius: 12px;
+  width: 100%;
+  height: 24px;
+  /* remove default tick marks */
+  color: transparent;
+}
+.fieldColourSlider::-ms-fill-lower  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-fill-upper  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+
+
+.blocklyMultilineText {
+    fill: #fff !important;
+}
+  
+
+.blocklyMultiselect&gt;image, .blocklyMultiselect&gt;svg&gt;image {
+  opacity: .2;
+}
+
+.blocklyMultiselect&gt;image:hover, .blocklyMultiselect&gt;svg&gt;image:hover {
+  opacity: .4;
+}
+
+.blocklyMultiselect&gt;image:active, .blocklyMultiselect&gt;svg&gt;image:active {
+  opacity: .6;
+}
+
+
+  .controlsIconStyleLightTheme {
+    opacity: 0.2;
+  }
+  .controlsIconStyleLightTheme:hover {
+    opacity: 0.4;
+  }
+  .controlsIconStyleLightTheme:active {
+    opacity: 0.6;
+  }
+  
+
+  .controlsIconStyleDarkTheme {
+    opacity: 0.4;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:hover {
+    opacity: 0.6;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:active {
+    opacity: 0.8;
+    filter: invert(1);
+  }
+  
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diff --git a/doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_acceleration_threshold.svg b/doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_acceleration_threshold.svg
new file mode 100644
index 0000000..73cfd1b
--- /dev/null
+++ b/doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_acceleration_threshold.svg
@@ -0,0 +1,994 @@
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+/* Darken flyout scrollbars due to being on a grey background. */
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+  border: 1px solid transparent;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+  font: normal 13px Arial, sans-serif;
+  margin: 0;
+  outline: none;
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diff --git a/doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_angular_velocity_threshold.svg b/doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_angular_velocity_threshold.svg
new file mode 100644
index 0000000..76d7eac
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+fill: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyFlyoutLabelText {
+fill: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyText.blocklyBubbleText {
+fill: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDraggable:not(.blocklyDisabled)
+ .blocklyEditableText:not(.editing):hover&gt;rect,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDraggable:not(.blocklyDisabled)
+ .blocklyEditableText:not(.editing):hover&gt;.blocklyPath {
+stroke: #fff;
+stroke-width: 2;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyHtmlInput {
+font-family: "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+font-weight: bold;
+color: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDropdownText {
+fill: #fff !important;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme.blocklyWidgetDiv .goog-menuitem,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme.blocklyDropDownDiv .goog-menuitem {
+font-family: "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme.blocklyDropDownDiv .goog-menuitem-content {
+color: #fff;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyHighlightedConnectionPath {
+stroke: #ffffff;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDisabled &gt; .blocklyOutlinePath {
+fill: url(#blocklyDisabledPattern462829236637911)
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyInsertionMarker&gt;.blocklyPath {
+fill-opacity: 0.2;
+stroke: none;
+}
+
+.blocklySvg {
+  background-color: #fff;
+  outline: none;
+  overflow: hidden;  /* IE overflows by default. */
+  position: absolute;
+  display: block;
+}
+
+.blocklyWidgetDiv {
+  display: none;
+  position: absolute;
+  z-index: 99999;  /* big value for bootstrap3 compatibility */
+}
+
+.injectionDiv {
+  height: 100%;
+  position: relative;
+  overflow: hidden;  /* So blocks in drag surface disappear at edges */
+  touch-action: none;
+}
+
+.blocklyNonSelectable {
+  user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+}
+
+.blocklyBlockCanvas.blocklyCanvasTransitioning,
+.blocklyBubbleCanvas.blocklyCanvasTransitioning {
+  transition: transform .5s;
+}
+
+.blocklyTooltipDiv {
+  background-color: #ffffc7;
+  border: 1px solid #ddc;
+  box-shadow: 4px 4px 20px 1px rgba(0,0,0,.15);
+  color: #000;
+  display: none;
+  font: 9pt sans-serif;
+  opacity: .9;
+  padding: 2px;
+  position: absolute;
+  z-index: 100000;  /* big value for bootstrap3 compatibility */
+}
+
+.blocklyDropDownDiv {
+  position: absolute;
+  left: 0;
+  top: 0;
+  z-index: 1000;
+  display: none;
+  border: 1px solid;
+  border-color: #dadce0;
+  background-color: #fff;
+  border-radius: 2px;
+  padding: 4px;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownContent {
+  max-height: 300px;  /* @todo: spec for maximum height. */
+  overflow: auto;
+  overflow-x: hidden;
+  position: relative;
+}
+
+.blocklyDropDownArrow {
+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 16px;
+  height: 16px;
+  z-index: -1;
+  background-color: inherit;
+  border-color: inherit;
+}
+
+.blocklyDropDownButton {
+  display: inline-block;
+  float: left;
+  padding: 0;
+  margin: 4px;
+  border-radius: 4px;
+  outline: none;
+  border: 1px solid;
+  transition: box-shadow .1s;
+  cursor: pointer;
+}
+
+.blocklyArrowTop {
+  border-top: 1px solid;
+  border-left: 1px solid;
+  border-top-left-radius: 4px;
+  border-color: inherit;
+}
+
+.blocklyArrowBottom {
+  border-bottom: 1px solid;
+  border-right: 1px solid;
+  border-bottom-right-radius: 4px;
+  border-color: inherit;
+}
+
+.blocklyResizeSE {
+  cursor: se-resize;
+  fill: #aaa;
+}
+
+.blocklyResizeSW {
+  cursor: sw-resize;
+  fill: #aaa;
+}
+
+.blocklyResizeLine {
+  stroke: #515A5A;
+  stroke-width: 1;
+}
+
+.blocklyHighlightedConnectionPath {
+  fill: none;
+  stroke: #fc3;
+  stroke-width: 4px;
+}
+
+.blocklyPathLight {
+  fill: none;
+  stroke-linecap: round;
+  stroke-width: 1;
+}
+
+.blocklySelected&gt;.blocklyPathLight {
+  display: none;
+}
+
+.blocklyDraggable {
+  cursor: grab;
+  cursor: -webkit-grab;
+}
+
+.blocklyDragging {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+  /* Changes cursor on mouse down. Not effective in Firefox because of
+     https://bugzilla.mozilla.org/show_bug.cgi?id=771241 */
+.blocklyDraggable:active {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+.blocklyDragging.blocklyDraggingDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyDragging&gt;.blocklyPath,
+.blocklyDragging&gt;.blocklyPathLight {
+  fill-opacity: .8;
+  stroke-opacity: .8;
+}
+
+.blocklyDragging&gt;.blocklyPathDark {
+  display: none;
+}
+
+.blocklyDisabled&gt;.blocklyPath {
+  fill-opacity: .5;
+  stroke-opacity: .5;
+}
+
+.blocklyDisabled&gt;.blocklyPathLight,
+.blocklyDisabled&gt;.blocklyPathDark {
+  display: none;
+}
+
+.blocklyInsertionMarker&gt;.blocklyPath,
+.blocklyInsertionMarker&gt;.blocklyPathLight,
+.blocklyInsertionMarker&gt;.blocklyPathDark {
+  fill-opacity: .2;
+  stroke: none;
+}
+
+.blocklyMultilineText {
+  font-family: monospace;
+}
+
+.blocklyNonEditableText&gt;text {
+  pointer-events: none;
+}
+
+.blocklyFlyout {
+  position: absolute;
+  z-index: 20;
+}
+
+.blocklyText text {
+  cursor: default;
+}
+
+/*
+  Don't allow users to select text.  It gets annoying when trying to
+  drag a block and selected text moves instead.
+*/
+.blocklySvg text {
+  user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+  cursor: inherit;
+}
+
+.blocklyHidden {
+  display: none;
+}
+
+.blocklyFieldDropdown:not(.blocklyHidden) {
+  display: block;
+}
+
+.blocklyIconGroup {
+  cursor: default;
+}
+
+.blocklyIconGroup:not(:hover),
+.blocklyIconGroupReadonly {
+  opacity: .6;
+}
+
+.blocklyIconShape {
+  fill: #00f;
+  stroke: #fff;
+  stroke-width: 1px;
+}
+
+.blocklyIconSymbol {
+  fill: #fff;
+}
+
+.blocklyMinimalBody {
+  margin: 0;
+  padding: 0;
+}
+
+.blocklyHtmlInput {
+  border: none;
+  border-radius: 4px;
+  height: 100%;
+  margin: 0;
+  outline: none;
+  padding: 0;
+  width: 100%;
+  text-align: center;
+  display: block;
+  box-sizing: border-box;
+}
+
+/* Remove the increase and decrease arrows on the field number editor */
+input.blocklyHtmlInput[type=number]::-webkit-inner-spin-button,
+input.blocklyHtmlInput[type=number]::-webkit-outer-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+input[type=number] {
+  -moz-appearance: textfield;
+}
+
+.blocklyMainBackground {
+  stroke-width: 1;
+  stroke: #c6c6c6;  /* Equates to #ddd due to border being off-pixel. */
+}
+
+.blocklyMutatorBackground {
+  fill: #fff;
+  stroke: #ddd;
+  stroke-width: 1;
+}
+
+.blocklyFlyoutBackground {
+  fill: #ddd;
+  fill-opacity: .8;
+}
+
+.blocklyMainWorkspaceScrollbar {
+  z-index: 20;
+}
+
+.blocklyFlyoutScrollbar {
+  z-index: 30;
+}
+
+.blocklyScrollbarHorizontal,
+.blocklyScrollbarVertical {
+  position: absolute;
+  outline: none;
+}
+
+.blocklyScrollbarBackground {
+  opacity: 0;
+}
+
+.blocklyScrollbarHandle {
+  fill: #ccc;
+}
+
+.blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyScrollbarHandle:hover {
+  fill: #bbb;
+}
+
+/* Darken flyout scrollbars due to being on a grey background. */
+/* By contrast, workspace scrollbars are on a white background. */
+.blocklyFlyout .blocklyScrollbarHandle {
+  fill: #bbb;
+}
+
+.blocklyFlyout .blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyFlyout .blocklyScrollbarHandle:hover {
+  fill: #aaa;
+}
+
+.blocklyInvalidInput {
+  background: #faa;
+}
+
+.blocklyVerticalMarker {
+  stroke-width: 3px;
+  fill: rgba(255,255,255,.5);
+  pointer-events: none;
+}
+
+.blocklyComputeCanvas {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+
+.blocklyNoPointerEvents {
+  pointer-events: none;
+}
+
+.blocklyContextMenu {
+  border-radius: 4px;
+  max-height: 100%;
+}
+
+.blocklyDropdownMenu {
+  border-radius: 2px;
+  padding: 0 !important;
+}
+
+.blocklyDropdownMenu .blocklyMenuItem {
+  /* 28px on the left for icon or checkbox. */
+  padding-left: 28px;
+}
+
+/* BiDi override for the resting state. */
+.blocklyDropdownMenu .blocklyMenuItemRtl {
+  /* Flip left/right padding for BiDi. */
+  padding-left: 5px;
+  padding-right: 28px;
+}
+
+.blocklyWidgetDiv .blocklyMenu {
+  background: #fff;
+  border: 1px solid transparent;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+  font: normal 13px Arial, sans-serif;
+  margin: 0;
+  outline: none;
+  padding: 4px 0;
+  position: absolute;
+  overflow-y: auto;
+  overflow-x: hidden;
+  max-height: 100%;
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+.blocklyWidgetDiv .blocklyMenu.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv .blocklyMenu {
+  background: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  border: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  font: normal 13px "Helvetica Neue", Helvetica, sans-serif;
+  outline: none;
+  position: relative;  /* Compatibility with gapi, reset from goog-menu */
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+/* State: resting. */
+.blocklyMenuItem {
+  border: none;
+  color: #000;
+  cursor: pointer;
+  list-style: none;
+  margin: 0;
+  /* 7em on the right for shortcut. */
+  min-width: 7em;
+  padding: 6px 15px;
+  white-space: nowrap;
+}
+
+/* State: disabled. */
+.blocklyMenuItemDisabled {
+  color: #ccc;
+  cursor: inherit;
+}
+
+/* State: hover. */
+.blocklyMenuItemHighlight {
+  background-color: rgba(0,0,0,.1);
+}
+
+/* State: selected/checked. */
+.blocklyMenuItemCheckbox {
+  height: 16px;
+  position: absolute;
+  width: 16px;
+}
+
+.blocklyMenuItemSelected .blocklyMenuItemCheckbox {
+  background: url(https://blockly-demo.appspot.com/static/media/sprites.png) no-repeat -48px -16px;
+  float: left;
+  margin-left: -24px;
+  position: static;  /* Scroll with the menu. */
+}
+
+.blocklyMenuItemRtl .blocklyMenuItemCheckbox {
+  float: right;
+  margin-right: -24px;
+}
+
+
+.blocklyZoom&gt;image, .blocklyZoom&gt;svg&gt;image {
+  opacity: .4;
+}
+
+.blocklyZoom&gt;image:hover, .blocklyZoom&gt;svg&gt;image:hover {
+  opacity: .6;
+}
+
+.blocklyZoom&gt;image:active, .blocklyZoom&gt;svg&gt;image:active {
+  opacity: .8;
+}
+
+
+.blocklyCommentForeignObject {
+  position: relative;
+  z-index: 0;
+}
+
+.blocklyCommentRect {
+  fill: #E7DE8E;
+  stroke: #bcA903;
+  stroke-width: 1px;
+}
+
+.blocklyCommentTarget {
+  fill: transparent;
+  stroke: #bcA903;
+}
+
+.blocklyCommentTargetFocused {
+  fill: none;
+}
+
+.blocklyCommentHandleTarget {
+  fill: none;
+}
+
+.blocklyCommentHandleTargetFocused {
+  fill: transparent;
+}
+
+.blocklyFocused&gt;.blocklyCommentRect {
+  fill: #B9B272;
+  stroke: #B9B272;
+}
+
+.blocklySelected&gt;.blocklyCommentTarget {
+  stroke: #fc3;
+  stroke-width: 3px;
+}
+
+.blocklyCommentDeleteIcon {
+  cursor: pointer;
+  fill: #000;
+  display: none;
+}
+
+.blocklySelected &gt; .blocklyCommentDeleteIcon {
+  display: block;
+}
+
+.blocklyDeleteIconShape {
+  fill: #000;
+  stroke: #000;
+  stroke-width: 1px;
+}
+
+.blocklyDeleteIconShape.blocklyDeleteIconHighlighted {
+  stroke: #fc3;
+}
+
+
+.blocklyCommentTextarea {
+  background-color: #fef49c;
+  border: 0;
+  display: block;
+  margin: 0;
+  outline: 0;
+  padding: 3px;
+  resize: none;
+  text-overflow: hidden;
+}
+
+
+.blocklyAngleCircle {
+  stroke: #444;
+  stroke-width: 1;
+  fill: #ddd;
+  fill-opacity: 0.8;
+}
+
+.blocklyAngleMarks {
+  stroke: #444;
+  stroke-width: 1;
+}
+
+.blocklyAngleGauge {
+  fill: #f88;
+  fill-opacity: 0.8;
+  pointer-events: none;
+}
+
+.blocklyAngleLine {
+  stroke: #f00;
+  stroke-width: 2;
+  stroke-linecap: round;
+  pointer-events: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.blocklyHtmlTextAreaInput {
+  font-family: monospace;
+  resize: none;
+  overflow: hidden;
+  height: 100%;
+  text-align: left;
+}
+
+.blocklyHtmlTextAreaInputOverflowedY {
+  overflow-y: scroll;
+}
+
+
+.blocklyFlyoutButton {
+  fill: #888;
+  cursor: default;
+}
+
+.blocklyFlyoutButtonShadow {
+  fill: #666;
+}
+
+.blocklyFlyoutButton:hover {
+  fill: #aaa;
+}
+
+.blocklyFlyoutLabel {
+  cursor: default;
+}
+
+.blocklyFlyoutLabelBackground {
+  opacity: 0;
+}
+
+
+.blocklyTreeRow:not(.blocklyTreeSelected):hover {
+  background-color: rgba(255, 255, 255, .2);
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyToolboxCategory {
+  margin: 1px 5px 1px 0;
+}
+
+.blocklyToolboxDiv[dir="RTL"][layout="h"] .blocklyToolboxCategory {
+  margin: 1px 0 1px 5px;
+}
+
+.blocklyTreeRow {
+  height: 22px;
+  line-height: 22px;
+  margin-bottom: 3px;
+  padding-right: 8px;
+  white-space: nowrap;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {
+  margin-left: 8px;
+  padding-right: 0;
+}
+
+.blocklyTreeIcon {
+  background-image: url(https://blockly-demo.appspot.com/static/media/sprites.png);
+  height: 16px;
+  vertical-align: middle;
+  visibility: hidden;
+  width: 16px;
+}
+
+.blocklyTreeIconClosed {
+  background-position: -32px -1px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeIconClosed {
+  background-position: 0 -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: -32px -17px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: 0 -17px;
+}
+
+.blocklyTreeIconOpen {
+  background-position: -16px -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconOpen {
+  background-position: -16px -17px;
+}
+
+.blocklyTreeLabel {
+  cursor: default;
+  font: 16px sans-serif;
+  padding: 0 3px;
+  vertical-align: middle;
+}
+
+.blocklyToolboxDelete .blocklyTreeLabel {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyTreeSelected .blocklyTreeLabel {
+  color: #fff;
+}
+
+
+.blocklyTreeSeparator {
+  border-bottom: solid #e5e5e5 1px;
+  height: 0;
+  margin: 5px 0;
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyTreeSeparator {
+  border-right: solid #e5e5e5 1px;
+  border-bottom: none;
+  height: auto;
+  margin: 0 5px 0 5px;
+  padding: 5px 0;
+  width: 0;
+}
+
+
+.blocklyToolboxDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyToolboxGrab {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handclosed.cur"), auto;
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+/* Category tree in Toolbox. */
+.blocklyToolboxDiv {
+  background-color: #ddd;
+  overflow-x: visible;
+  overflow-y: auto;
+  padding: 4px 0 4px 0;
+  position: absolute;
+  z-index: 70;  /* so blocks go under toolbox when dragging */
+  -webkit-tap-highlight-color: transparent;  /* issue #1345 */
+}
+
+.blocklyToolboxContents {
+  display: flex;
+  flex-wrap: wrap;
+  flex-direction: column;
+}
+
+.blocklyToolboxContents:focus {
+  outline: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.fieldColourSliderContainer {
+  padding: 4px;
+}
+.fieldColourSliderContainer hr {
+  border: none;
+  border-top: 1px solid #bbb;
+}
+.fieldColourSliderLabel {
+  display: flex;
+  justify-content: space-between;
+  font: 12pt "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.fieldColourEyedropper {
+  appearance: none;
+  position: relative;
+  border: none;
+  border-radius: 4px;
+  background: transparent;
+  font: inherit;
+  color: inherit;
+  cursor: pointer;
+  width: 100%;
+  margin: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+.fieldColourEyedropper:hover {
+  background: rgba(0,0,0,0.1)
+}
+.fieldColourEyedropper input {
+  opacity: 0;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+.fieldColourEyedropper::before {
+  content: "Eyedropper";
+}
+.fieldColourEyedropper::after {
+  content: "";
+  margin-left: 8px;
+  width: 24px;
+  height: 24px;
+  background: currentColor;
+  pointer-events: none;
+  -webkit-mask-image: var(--customize-dial-symbol);
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  mask-image: var(--customize-dial-symbol);
+  mask-repeat: no-repeat;
+  mask-position: center;
+  --customize-dial-symbol: url('data:image/svg+xml,    &lt;svg xmlns="http://www.w3.org/2000/svg"          width="24px" height="24px"          viewBox="0 0 24 24"&gt;       &lt;path stroke="black" strokewidth="1.414" fill="none"             d="m 13 8 L 6 15 Q 3 18 2 21 Q 0 23 .5 23.5 Q 1 24 3 22                 Q 6 21 9 18 L 16 11"/&gt;       &lt;path fill="black"             d="m 12 7 Q 11 6 12 5 Q 13 4 14 5 Q 15 6 16 5 Q 20 -1 22.5 1.5                 Q 25 4 19 8 Q 18 9 19 10 Q 20 11 19 12 Q 18 13 17 12"/&gt;     &lt;/svg&gt;');
+}
+.fieldColourSlider {
+  -webkit-appearance: none;
+  width: 150px;
+  height: 24px;
+  margin: 4px 8px 24px 8px;
+  padding: 0;
+}
+.fieldColourSlider:last-child {
+  margin-bottom: 4px;
+}
+.fieldColourSlider:focus {
+  outline: none;
+}
+/* Webkit */
+.fieldColourSlider::-webkit-slider-runnable-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-webkit-slider-thumb {
+  -webkit-appearance: none;
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diff --git a/doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_heading_correction.svg b/doc/main/blockimg/pybricks_blockImuConfigure_PrimeHub_imu.settings_heading_correction.svg
new file mode 100644
index 0000000..a43cb54
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+  z-index: 20;
+}
+
+.blocklyFlyoutScrollbar {
+  z-index: 30;
+}
+
+.blocklyScrollbarHorizontal,
+.blocklyScrollbarVertical {
+  position: absolute;
+  outline: none;
+}
+
+.blocklyScrollbarBackground {
+  opacity: 0;
+}
+
+.blocklyScrollbarHandle {
+  fill: #ccc;
+}
+
+.blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyScrollbarHandle:hover {
+  fill: #bbb;
+}
+
+/* Darken flyout scrollbars due to being on a grey background. */
+/* By contrast, workspace scrollbars are on a white background. */
+.blocklyFlyout .blocklyScrollbarHandle {
+  fill: #bbb;
+}
+
+.blocklyFlyout .blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyFlyout .blocklyScrollbarHandle:hover {
+  fill: #aaa;
+}
+
+.blocklyInvalidInput {
+  background: #faa;
+}
+
+.blocklyVerticalMarker {
+  stroke-width: 3px;
+  fill: rgba(255,255,255,.5);
+  pointer-events: none;
+}
+
+.blocklyComputeCanvas {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+
+.blocklyNoPointerEvents {
+  pointer-events: none;
+}
+
+.blocklyContextMenu {
+  border-radius: 4px;
+  max-height: 100%;
+}
+
+.blocklyDropdownMenu {
+  border-radius: 2px;
+  padding: 0 !important;
+}
+
+.blocklyDropdownMenu .blocklyMenuItem {
+  /* 28px on the left for icon or checkbox. */
+  padding-left: 28px;
+}
+
+/* BiDi override for the resting state. */
+.blocklyDropdownMenu .blocklyMenuItemRtl {
+  /* Flip left/right padding for BiDi. */
+  padding-left: 5px;
+  padding-right: 28px;
+}
+
+.blocklyWidgetDiv .blocklyMenu {
+  background: #fff;
+  border: 1px solid transparent;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+  font: normal 13px Arial, sans-serif;
+  margin: 0;
+  outline: none;
+  padding: 4px 0;
+  position: absolute;
+  overflow-y: auto;
+  overflow-x: hidden;
+  max-height: 100%;
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+.blocklyWidgetDiv .blocklyMenu.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv .blocklyMenu {
+  background: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  border: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  font: normal 13px "Helvetica Neue", Helvetica, sans-serif;
+  outline: none;
+  position: relative;  /* Compatibility with gapi, reset from goog-menu */
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+/* State: resting. */
+.blocklyMenuItem {
+  border: none;
+  color: #000;
+  cursor: pointer;
+  list-style: none;
+  margin: 0;
+  /* 7em on the right for shortcut. */
+  min-width: 7em;
+  padding: 6px 15px;
+  white-space: nowrap;
+}
+
+/* State: disabled. */
+.blocklyMenuItemDisabled {
+  color: #ccc;
+  cursor: inherit;
+}
+
+/* State: hover. */
+.blocklyMenuItemHighlight {
+  background-color: rgba(0,0,0,.1);
+}
+
+/* State: selected/checked. */
+.blocklyMenuItemCheckbox {
+  height: 16px;
+  position: absolute;
+  width: 16px;
+}
+
+.blocklyMenuItemSelected .blocklyMenuItemCheckbox {
+  background: url(https://blockly-demo.appspot.com/static/media/sprites.png) no-repeat -48px -16px;
+  float: left;
+  margin-left: -24px;
+  position: static;  /* Scroll with the menu. */
+}
+
+.blocklyMenuItemRtl .blocklyMenuItemCheckbox {
+  float: right;
+  margin-right: -24px;
+}
+
+
+.blocklyZoom&gt;image, .blocklyZoom&gt;svg&gt;image {
+  opacity: .4;
+}
+
+.blocklyZoom&gt;image:hover, .blocklyZoom&gt;svg&gt;image:hover {
+  opacity: .6;
+}
+
+.blocklyZoom&gt;image:active, .blocklyZoom&gt;svg&gt;image:active {
+  opacity: .8;
+}
+
+
+.blocklyCommentForeignObject {
+  position: relative;
+  z-index: 0;
+}
+
+.blocklyCommentRect {
+  fill: #E7DE8E;
+  stroke: #bcA903;
+  stroke-width: 1px;
+}
+
+.blocklyCommentTarget {
+  fill: transparent;
+  stroke: #bcA903;
+}
+
+.blocklyCommentTargetFocused {
+  fill: none;
+}
+
+.blocklyCommentHandleTarget {
+  fill: none;
+}
+
+.blocklyCommentHandleTargetFocused {
+  fill: transparent;
+}
+
+.blocklyFocused&gt;.blocklyCommentRect {
+  fill: #B9B272;
+  stroke: #B9B272;
+}
+
+.blocklySelected&gt;.blocklyCommentTarget {
+  stroke: #fc3;
+  stroke-width: 3px;
+}
+
+.blocklyCommentDeleteIcon {
+  cursor: pointer;
+  fill: #000;
+  display: none;
+}
+
+.blocklySelected &gt; .blocklyCommentDeleteIcon {
+  display: block;
+}
+
+.blocklyDeleteIconShape {
+  fill: #000;
+  stroke: #000;
+  stroke-width: 1px;
+}
+
+.blocklyDeleteIconShape.blocklyDeleteIconHighlighted {
+  stroke: #fc3;
+}
+
+
+.blocklyCommentTextarea {
+  background-color: #fef49c;
+  border: 0;
+  display: block;
+  margin: 0;
+  outline: 0;
+  padding: 3px;
+  resize: none;
+  text-overflow: hidden;
+}
+
+
+.blocklyAngleCircle {
+  stroke: #444;
+  stroke-width: 1;
+  fill: #ddd;
+  fill-opacity: 0.8;
+}
+
+.blocklyAngleMarks {
+  stroke: #444;
+  stroke-width: 1;
+}
+
+.blocklyAngleGauge {
+  fill: #f88;
+  fill-opacity: 0.8;
+  pointer-events: none;
+}
+
+.blocklyAngleLine {
+  stroke: #f00;
+  stroke-width: 2;
+  stroke-linecap: round;
+  pointer-events: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.blocklyHtmlTextAreaInput {
+  font-family: monospace;
+  resize: none;
+  overflow: hidden;
+  height: 100%;
+  text-align: left;
+}
+
+.blocklyHtmlTextAreaInputOverflowedY {
+  overflow-y: scroll;
+}
+
+
+.blocklyFlyoutButton {
+  fill: #888;
+  cursor: default;
+}
+
+.blocklyFlyoutButtonShadow {
+  fill: #666;
+}
+
+.blocklyFlyoutButton:hover {
+  fill: #aaa;
+}
+
+.blocklyFlyoutLabel {
+  cursor: default;
+}
+
+.blocklyFlyoutLabelBackground {
+  opacity: 0;
+}
+
+
+.blocklyTreeRow:not(.blocklyTreeSelected):hover {
+  background-color: rgba(255, 255, 255, .2);
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyToolboxCategory {
+  margin: 1px 5px 1px 0;
+}
+
+.blocklyToolboxDiv[dir="RTL"][layout="h"] .blocklyToolboxCategory {
+  margin: 1px 0 1px 5px;
+}
+
+.blocklyTreeRow {
+  height: 22px;
+  line-height: 22px;
+  margin-bottom: 3px;
+  padding-right: 8px;
+  white-space: nowrap;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {
+  margin-left: 8px;
+  padding-right: 0;
+}
+
+.blocklyTreeIcon {
+  background-image: url(https://blockly-demo.appspot.com/static/media/sprites.png);
+  height: 16px;
+  vertical-align: middle;
+  visibility: hidden;
+  width: 16px;
+}
+
+.blocklyTreeIconClosed {
+  background-position: -32px -1px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeIconClosed {
+  background-position: 0 -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: -32px -17px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: 0 -17px;
+}
+
+.blocklyTreeIconOpen {
+  background-position: -16px -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconOpen {
+  background-position: -16px -17px;
+}
+
+.blocklyTreeLabel {
+  cursor: default;
+  font: 16px sans-serif;
+  padding: 0 3px;
+  vertical-align: middle;
+}
+
+.blocklyToolboxDelete .blocklyTreeLabel {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyTreeSelected .blocklyTreeLabel {
+  color: #fff;
+}
+
+
+.blocklyTreeSeparator {
+  border-bottom: solid #e5e5e5 1px;
+  height: 0;
+  margin: 5px 0;
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyTreeSeparator {
+  border-right: solid #e5e5e5 1px;
+  border-bottom: none;
+  height: auto;
+  margin: 0 5px 0 5px;
+  padding: 5px 0;
+  width: 0;
+}
+
+
+.blocklyToolboxDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyToolboxGrab {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handclosed.cur"), auto;
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+/* Category tree in Toolbox. */
+.blocklyToolboxDiv {
+  background-color: #ddd;
+  overflow-x: visible;
+  overflow-y: auto;
+  padding: 4px 0 4px 0;
+  position: absolute;
+  z-index: 70;  /* so blocks go under toolbox when dragging */
+  -webkit-tap-highlight-color: transparent;  /* issue #1345 */
+}
+
+.blocklyToolboxContents {
+  display: flex;
+  flex-wrap: wrap;
+  flex-direction: column;
+}
+
+.blocklyToolboxContents:focus {
+  outline: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.fieldColourSliderContainer {
+  padding: 4px;
+}
+.fieldColourSliderContainer hr {
+  border: none;
+  border-top: 1px solid #bbb;
+}
+.fieldColourSliderLabel {
+  display: flex;
+  justify-content: space-between;
+  font: 12pt "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.fieldColourEyedropper {
+  appearance: none;
+  position: relative;
+  border: none;
+  border-radius: 4px;
+  background: transparent;
+  font: inherit;
+  color: inherit;
+  cursor: pointer;
+  width: 100%;
+  margin: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+.fieldColourEyedropper:hover {
+  background: rgba(0,0,0,0.1)
+}
+.fieldColourEyedropper input {
+  opacity: 0;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+.fieldColourEyedropper::before {
+  content: "Eyedropper";
+}
+.fieldColourEyedropper::after {
+  content: "";
+  margin-left: 8px;
+  width: 24px;
+  height: 24px;
+  background: currentColor;
+  pointer-events: none;
+  -webkit-mask-image: var(--customize-dial-symbol);
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  mask-image: var(--customize-dial-symbol);
+  mask-repeat: no-repeat;
+  mask-position: center;
+  --customize-dial-symbol: url('data:image/svg+xml,    &lt;svg xmlns="http://www.w3.org/2000/svg"          width="24px" height="24px"          viewBox="0 0 24 24"&gt;       &lt;path stroke="black" strokewidth="1.414" fill="none"             d="m 13 8 L 6 15 Q 3 18 2 21 Q 0 23 .5 23.5 Q 1 24 3 22                 Q 6 21 9 18 L 16 11"/&gt;       &lt;path fill="black"             d="m 12 7 Q 11 6 12 5 Q 13 4 14 5 Q 15 6 16 5 Q 20 -1 22.5 1.5                 Q 25 4 19 8 Q 18 9 19 10 Q 20 11 19 12 Q 18 13 17 12"/&gt;     &lt;/svg&gt;');
+}
+.fieldColourSlider {
+  -webkit-appearance: none;
+  width: 150px;
+  height: 24px;
+  margin: 4px 8px 24px 8px;
+  padding: 0;
+}
+.fieldColourSlider:last-child {
+  margin-bottom: 4px;
+}
+.fieldColourSlider:focus {
+  outline: none;
+}
+/* Webkit */
+.fieldColourSlider::-webkit-slider-runnable-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  background: #fff;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+  margin-top: -4px;
+}
+/* Firefox */
+.fieldColourSlider::-moz-range-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-moz-range-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+.fieldColourSlider::-moz-focus-outer {
+  /* override the focus border style */
+  border: 0;
+}
+/* IE */
+.fieldColourSlider::-ms-track {
+  background: var(--slider-track-background);
+  border-radius: 12px;
+  width: 100%;
+  height: 24px;
+  /* remove default tick marks */
+  color: transparent;
+}
+.fieldColourSlider::-ms-fill-lower  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-fill-upper  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+
+
+.blocklyMultilineText {
+    fill: #fff !important;
+}
+  
+
+.blocklyMultiselect&gt;image, .blocklyMultiselect&gt;svg&gt;image {
+  opacity: .2;
+}
+
+.blocklyMultiselect&gt;image:hover, .blocklyMultiselect&gt;svg&gt;image:hover {
+  opacity: .4;
+}
+
+.blocklyMultiselect&gt;image:active, .blocklyMultiselect&gt;svg&gt;image:active {
+  opacity: .6;
+}
+
+
+  .controlsIconStyleLightTheme {
+    opacity: 0.2;
+  }
+  .controlsIconStyleLightTheme:hover {
+    opacity: 0.4;
+  }
+  .controlsIconStyleLightTheme:active {
+    opacity: 0.6;
+  }
+  
+
+  .controlsIconStyleDarkTheme {
+    opacity: 0.4;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:hover {
+    opacity: 0.6;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:active {
+    opacity: 0.8;
+    filter: invert(1);
+  }
+  
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new file mode 100644
index 0000000..c28e006
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+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyNonEditableText&gt;text,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyEditableText&gt;text,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyNonEditableText&gt;g&gt;text,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyEditableText&gt;g&gt;text {
+fill: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyFlyoutLabelText {
+fill: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyText.blocklyBubbleText {
+fill: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDraggable:not(.blocklyDisabled)
+ .blocklyEditableText:not(.editing):hover&gt;rect,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDraggable:not(.blocklyDisabled)
+ .blocklyEditableText:not(.editing):hover&gt;.blocklyPath {
+stroke: #fff;
+stroke-width: 2;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyHtmlInput {
+font-family: "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+font-weight: bold;
+color: #575E75;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDropdownText {
+fill: #fff !important;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme.blocklyWidgetDiv .goog-menuitem,
+.pybricks_renderer-renderer.pybricks-zelos-light-theme.blocklyDropDownDiv .goog-menuitem {
+font-family: "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme.blocklyDropDownDiv .goog-menuitem-content {
+color: #fff;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyHighlightedConnectionPath {
+stroke: #ffffff;
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyDisabled &gt; .blocklyOutlinePath {
+fill: url(#blocklyDisabledPattern462829236637911)
+}
+.pybricks_renderer-renderer.pybricks-zelos-light-theme .blocklyInsertionMarker&gt;.blocklyPath {
+fill-opacity: 0.2;
+stroke: none;
+}
+
+.blocklySvg {
+  background-color: #fff;
+  outline: none;
+  overflow: hidden;  /* IE overflows by default. */
+  position: absolute;
+  display: block;
+}
+
+.blocklyWidgetDiv {
+  display: none;
+  position: absolute;
+  z-index: 99999;  /* big value for bootstrap3 compatibility */
+}
+
+.injectionDiv {
+  height: 100%;
+  position: relative;
+  overflow: hidden;  /* So blocks in drag surface disappear at edges */
+  touch-action: none;
+}
+
+.blocklyNonSelectable {
+  user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+}
+
+.blocklyBlockCanvas.blocklyCanvasTransitioning,
+.blocklyBubbleCanvas.blocklyCanvasTransitioning {
+  transition: transform .5s;
+}
+
+.blocklyTooltipDiv {
+  background-color: #ffffc7;
+  border: 1px solid #ddc;
+  box-shadow: 4px 4px 20px 1px rgba(0,0,0,.15);
+  color: #000;
+  display: none;
+  font: 9pt sans-serif;
+  opacity: .9;
+  padding: 2px;
+  position: absolute;
+  z-index: 100000;  /* big value for bootstrap3 compatibility */
+}
+
+.blocklyDropDownDiv {
+  position: absolute;
+  left: 0;
+  top: 0;
+  z-index: 1000;
+  display: none;
+  border: 1px solid;
+  border-color: #dadce0;
+  background-color: #fff;
+  border-radius: 2px;
+  padding: 4px;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownContent {
+  max-height: 300px;  /* @todo: spec for maximum height. */
+  overflow: auto;
+  overflow-x: hidden;
+  position: relative;
+}
+
+.blocklyDropDownArrow {
+  position: absolute;
+  left: 0;
+  top: 0;
+  width: 16px;
+  height: 16px;
+  z-index: -1;
+  background-color: inherit;
+  border-color: inherit;
+}
+
+.blocklyDropDownButton {
+  display: inline-block;
+  float: left;
+  padding: 0;
+  margin: 4px;
+  border-radius: 4px;
+  outline: none;
+  border: 1px solid;
+  transition: box-shadow .1s;
+  cursor: pointer;
+}
+
+.blocklyArrowTop {
+  border-top: 1px solid;
+  border-left: 1px solid;
+  border-top-left-radius: 4px;
+  border-color: inherit;
+}
+
+.blocklyArrowBottom {
+  border-bottom: 1px solid;
+  border-right: 1px solid;
+  border-bottom-right-radius: 4px;
+  border-color: inherit;
+}
+
+.blocklyResizeSE {
+  cursor: se-resize;
+  fill: #aaa;
+}
+
+.blocklyResizeSW {
+  cursor: sw-resize;
+  fill: #aaa;
+}
+
+.blocklyResizeLine {
+  stroke: #515A5A;
+  stroke-width: 1;
+}
+
+.blocklyHighlightedConnectionPath {
+  fill: none;
+  stroke: #fc3;
+  stroke-width: 4px;
+}
+
+.blocklyPathLight {
+  fill: none;
+  stroke-linecap: round;
+  stroke-width: 1;
+}
+
+.blocklySelected&gt;.blocklyPathLight {
+  display: none;
+}
+
+.blocklyDraggable {
+  cursor: grab;
+  cursor: -webkit-grab;
+}
+
+.blocklyDragging {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+  /* Changes cursor on mouse down. Not effective in Firefox because of
+     https://bugzilla.mozilla.org/show_bug.cgi?id=771241 */
+.blocklyDraggable:active {
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+.blocklyDragging.blocklyDraggingDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyDragging&gt;.blocklyPath,
+.blocklyDragging&gt;.blocklyPathLight {
+  fill-opacity: .8;
+  stroke-opacity: .8;
+}
+
+.blocklyDragging&gt;.blocklyPathDark {
+  display: none;
+}
+
+.blocklyDisabled&gt;.blocklyPath {
+  fill-opacity: .5;
+  stroke-opacity: .5;
+}
+
+.blocklyDisabled&gt;.blocklyPathLight,
+.blocklyDisabled&gt;.blocklyPathDark {
+  display: none;
+}
+
+.blocklyInsertionMarker&gt;.blocklyPath,
+.blocklyInsertionMarker&gt;.blocklyPathLight,
+.blocklyInsertionMarker&gt;.blocklyPathDark {
+  fill-opacity: .2;
+  stroke: none;
+}
+
+.blocklyMultilineText {
+  font-family: monospace;
+}
+
+.blocklyNonEditableText&gt;text {
+  pointer-events: none;
+}
+
+.blocklyFlyout {
+  position: absolute;
+  z-index: 20;
+}
+
+.blocklyText text {
+  cursor: default;
+}
+
+/*
+  Don't allow users to select text.  It gets annoying when trying to
+  drag a block and selected text moves instead.
+*/
+.blocklySvg text {
+  user-select: none;
+  -ms-user-select: none;
+  -webkit-user-select: none;
+  cursor: inherit;
+}
+
+.blocklyHidden {
+  display: none;
+}
+
+.blocklyFieldDropdown:not(.blocklyHidden) {
+  display: block;
+}
+
+.blocklyIconGroup {
+  cursor: default;
+}
+
+.blocklyIconGroup:not(:hover),
+.blocklyIconGroupReadonly {
+  opacity: .6;
+}
+
+.blocklyIconShape {
+  fill: #00f;
+  stroke: #fff;
+  stroke-width: 1px;
+}
+
+.blocklyIconSymbol {
+  fill: #fff;
+}
+
+.blocklyMinimalBody {
+  margin: 0;
+  padding: 0;
+}
+
+.blocklyHtmlInput {
+  border: none;
+  border-radius: 4px;
+  height: 100%;
+  margin: 0;
+  outline: none;
+  padding: 0;
+  width: 100%;
+  text-align: center;
+  display: block;
+  box-sizing: border-box;
+}
+
+/* Remove the increase and decrease arrows on the field number editor */
+input.blocklyHtmlInput[type=number]::-webkit-inner-spin-button,
+input.blocklyHtmlInput[type=number]::-webkit-outer-spin-button {
+  -webkit-appearance: none;
+  margin: 0;
+}
+
+input[type=number] {
+  -moz-appearance: textfield;
+}
+
+.blocklyMainBackground {
+  stroke-width: 1;
+  stroke: #c6c6c6;  /* Equates to #ddd due to border being off-pixel. */
+}
+
+.blocklyMutatorBackground {
+  fill: #fff;
+  stroke: #ddd;
+  stroke-width: 1;
+}
+
+.blocklyFlyoutBackground {
+  fill: #ddd;
+  fill-opacity: .8;
+}
+
+.blocklyMainWorkspaceScrollbar {
+  z-index: 20;
+}
+
+.blocklyFlyoutScrollbar {
+  z-index: 30;
+}
+
+.blocklyScrollbarHorizontal,
+.blocklyScrollbarVertical {
+  position: absolute;
+  outline: none;
+}
+
+.blocklyScrollbarBackground {
+  opacity: 0;
+}
+
+.blocklyScrollbarHandle {
+  fill: #ccc;
+}
+
+.blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyScrollbarHandle:hover {
+  fill: #bbb;
+}
+
+/* Darken flyout scrollbars due to being on a grey background. */
+/* By contrast, workspace scrollbars are on a white background. */
+.blocklyFlyout .blocklyScrollbarHandle {
+  fill: #bbb;
+}
+
+.blocklyFlyout .blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyFlyout .blocklyScrollbarHandle:hover {
+  fill: #aaa;
+}
+
+.blocklyInvalidInput {
+  background: #faa;
+}
+
+.blocklyVerticalMarker {
+  stroke-width: 3px;
+  fill: rgba(255,255,255,.5);
+  pointer-events: none;
+}
+
+.blocklyComputeCanvas {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+
+.blocklyNoPointerEvents {
+  pointer-events: none;
+}
+
+.blocklyContextMenu {
+  border-radius: 4px;
+  max-height: 100%;
+}
+
+.blocklyDropdownMenu {
+  border-radius: 2px;
+  padding: 0 !important;
+}
+
+.blocklyDropdownMenu .blocklyMenuItem {
+  /* 28px on the left for icon or checkbox. */
+  padding-left: 28px;
+}
+
+/* BiDi override for the resting state. */
+.blocklyDropdownMenu .blocklyMenuItemRtl {
+  /* Flip left/right padding for BiDi. */
+  padding-left: 5px;
+  padding-right: 28px;
+}
+
+.blocklyWidgetDiv .blocklyMenu {
+  background: #fff;
+  border: 1px solid transparent;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+  font: normal 13px Arial, sans-serif;
+  margin: 0;
+  outline: none;
+  padding: 4px 0;
+  position: absolute;
+  overflow-y: auto;
+  overflow-x: hidden;
+  max-height: 100%;
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+.blocklyWidgetDiv .blocklyMenu.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv .blocklyMenu {
+  background: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  border: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  font: normal 13px "Helvetica Neue", Helvetica, sans-serif;
+  outline: none;
+  position: relative;  /* Compatibility with gapi, reset from goog-menu */
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+/* State: resting. */
+.blocklyMenuItem {
+  border: none;
+  color: #000;
+  cursor: pointer;
+  list-style: none;
+  margin: 0;
+  /* 7em on the right for shortcut. */
+  min-width: 7em;
+  padding: 6px 15px;
+  white-space: nowrap;
+}
+
+/* State: disabled. */
+.blocklyMenuItemDisabled {
+  color: #ccc;
+  cursor: inherit;
+}
+
+/* State: hover. */
+.blocklyMenuItemHighlight {
+  background-color: rgba(0,0,0,.1);
+}
+
+/* State: selected/checked. */
+.blocklyMenuItemCheckbox {
+  height: 16px;
+  position: absolute;
+  width: 16px;
+}
+
+.blocklyMenuItemSelected .blocklyMenuItemCheckbox {
+  background: url(https://blockly-demo.appspot.com/static/media/sprites.png) no-repeat -48px -16px;
+  float: left;
+  margin-left: -24px;
+  position: static;  /* Scroll with the menu. */
+}
+
+.blocklyMenuItemRtl .blocklyMenuItemCheckbox {
+  float: right;
+  margin-right: -24px;
+}
+
+
+.blocklyZoom&gt;image, .blocklyZoom&gt;svg&gt;image {
+  opacity: .4;
+}
+
+.blocklyZoom&gt;image:hover, .blocklyZoom&gt;svg&gt;image:hover {
+  opacity: .6;
+}
+
+.blocklyZoom&gt;image:active, .blocklyZoom&gt;svg&gt;image:active {
+  opacity: .8;
+}
+
+
+.blocklyCommentForeignObject {
+  position: relative;
+  z-index: 0;
+}
+
+.blocklyCommentRect {
+  fill: #E7DE8E;
+  stroke: #bcA903;
+  stroke-width: 1px;
+}
+
+.blocklyCommentTarget {
+  fill: transparent;
+  stroke: #bcA903;
+}
+
+.blocklyCommentTargetFocused {
+  fill: none;
+}
+
+.blocklyCommentHandleTarget {
+  fill: none;
+}
+
+.blocklyCommentHandleTargetFocused {
+  fill: transparent;
+}
+
+.blocklyFocused&gt;.blocklyCommentRect {
+  fill: #B9B272;
+  stroke: #B9B272;
+}
+
+.blocklySelected&gt;.blocklyCommentTarget {
+  stroke: #fc3;
+  stroke-width: 3px;
+}
+
+.blocklyCommentDeleteIcon {
+  cursor: pointer;
+  fill: #000;
+  display: none;
+}
+
+.blocklySelected &gt; .blocklyCommentDeleteIcon {
+  display: block;
+}
+
+.blocklyDeleteIconShape {
+  fill: #000;
+  stroke: #000;
+  stroke-width: 1px;
+}
+
+.blocklyDeleteIconShape.blocklyDeleteIconHighlighted {
+  stroke: #fc3;
+}
+
+
+.blocklyCommentTextarea {
+  background-color: #fef49c;
+  border: 0;
+  display: block;
+  margin: 0;
+  outline: 0;
+  padding: 3px;
+  resize: none;
+  text-overflow: hidden;
+}
+
+
+.blocklyAngleCircle {
+  stroke: #444;
+  stroke-width: 1;
+  fill: #ddd;
+  fill-opacity: 0.8;
+}
+
+.blocklyAngleMarks {
+  stroke: #444;
+  stroke-width: 1;
+}
+
+.blocklyAngleGauge {
+  fill: #f88;
+  fill-opacity: 0.8;
+  pointer-events: none;
+}
+
+.blocklyAngleLine {
+  stroke: #f00;
+  stroke-width: 2;
+  stroke-linecap: round;
+  pointer-events: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.blocklyHtmlTextAreaInput {
+  font-family: monospace;
+  resize: none;
+  overflow: hidden;
+  height: 100%;
+  text-align: left;
+}
+
+.blocklyHtmlTextAreaInputOverflowedY {
+  overflow-y: scroll;
+}
+
+
+.blocklyFlyoutButton {
+  fill: #888;
+  cursor: default;
+}
+
+.blocklyFlyoutButtonShadow {
+  fill: #666;
+}
+
+.blocklyFlyoutButton:hover {
+  fill: #aaa;
+}
+
+.blocklyFlyoutLabel {
+  cursor: default;
+}
+
+.blocklyFlyoutLabelBackground {
+  opacity: 0;
+}
+
+
+.blocklyTreeRow:not(.blocklyTreeSelected):hover {
+  background-color: rgba(255, 255, 255, .2);
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyToolboxCategory {
+  margin: 1px 5px 1px 0;
+}
+
+.blocklyToolboxDiv[dir="RTL"][layout="h"] .blocklyToolboxCategory {
+  margin: 1px 0 1px 5px;
+}
+
+.blocklyTreeRow {
+  height: 22px;
+  line-height: 22px;
+  margin-bottom: 3px;
+  padding-right: 8px;
+  white-space: nowrap;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {
+  margin-left: 8px;
+  padding-right: 0;
+}
+
+.blocklyTreeIcon {
+  background-image: url(https://blockly-demo.appspot.com/static/media/sprites.png);
+  height: 16px;
+  vertical-align: middle;
+  visibility: hidden;
+  width: 16px;
+}
+
+.blocklyTreeIconClosed {
+  background-position: -32px -1px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeIconClosed {
+  background-position: 0 -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: -32px -17px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: 0 -17px;
+}
+
+.blocklyTreeIconOpen {
+  background-position: -16px -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconOpen {
+  background-position: -16px -17px;
+}
+
+.blocklyTreeLabel {
+  cursor: default;
+  font: 16px sans-serif;
+  padding: 0 3px;
+  vertical-align: middle;
+}
+
+.blocklyToolboxDelete .blocklyTreeLabel {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyTreeSelected .blocklyTreeLabel {
+  color: #fff;
+}
+
+
+.blocklyTreeSeparator {
+  border-bottom: solid #e5e5e5 1px;
+  height: 0;
+  margin: 5px 0;
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyTreeSeparator {
+  border-right: solid #e5e5e5 1px;
+  border-bottom: none;
+  height: auto;
+  margin: 0 5px 0 5px;
+  padding: 5px 0;
+  width: 0;
+}
+
+
+.blocklyToolboxDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyToolboxGrab {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handclosed.cur"), auto;
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+/* Category tree in Toolbox. */
+.blocklyToolboxDiv {
+  background-color: #ddd;
+  overflow-x: visible;
+  overflow-y: auto;
+  padding: 4px 0 4px 0;
+  position: absolute;
+  z-index: 70;  /* so blocks go under toolbox when dragging */
+  -webkit-tap-highlight-color: transparent;  /* issue #1345 */
+}
+
+.blocklyToolboxContents {
+  display: flex;
+  flex-wrap: wrap;
+  flex-direction: column;
+}
+
+.blocklyToolboxContents:focus {
+  outline: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.fieldColourSliderContainer {
+  padding: 4px;
+}
+.fieldColourSliderContainer hr {
+  border: none;
+  border-top: 1px solid #bbb;
+}
+.fieldColourSliderLabel {
+  display: flex;
+  justify-content: space-between;
+  font: 12pt "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.fieldColourEyedropper {
+  appearance: none;
+  position: relative;
+  border: none;
+  border-radius: 4px;
+  background: transparent;
+  font: inherit;
+  color: inherit;
+  cursor: pointer;
+  width: 100%;
+  margin: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+.fieldColourEyedropper:hover {
+  background: rgba(0,0,0,0.1)
+}
+.fieldColourEyedropper input {
+  opacity: 0;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+.fieldColourEyedropper::before {
+  content: "Eyedropper";
+}
+.fieldColourEyedropper::after {
+  content: "";
+  margin-left: 8px;
+  width: 24px;
+  height: 24px;
+  background: currentColor;
+  pointer-events: none;
+  -webkit-mask-image: var(--customize-dial-symbol);
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  mask-image: var(--customize-dial-symbol);
+  mask-repeat: no-repeat;
+  mask-position: center;
+  --customize-dial-symbol: url('data:image/svg+xml,    &lt;svg xmlns="http://www.w3.org/2000/svg"          width="24px" height="24px"          viewBox="0 0 24 24"&gt;       &lt;path stroke="black" strokewidth="1.414" fill="none"             d="m 13 8 L 6 15 Q 3 18 2 21 Q 0 23 .5 23.5 Q 1 24 3 22                 Q 6 21 9 18 L 16 11"/&gt;       &lt;path fill="black"             d="m 12 7 Q 11 6 12 5 Q 13 4 14 5 Q 15 6 16 5 Q 20 -1 22.5 1.5                 Q 25 4 19 8 Q 18 9 19 10 Q 20 11 19 12 Q 18 13 17 12"/&gt;     &lt;/svg&gt;');
+}
+.fieldColourSlider {
+  -webkit-appearance: none;
+  width: 150px;
+  height: 24px;
+  margin: 4px 8px 24px 8px;
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diff --git a/doc/main/blockimg/pybricks_blockImuConfigure_TechnicHub_imu.settings_heading_correction.svg b/doc/main/blockimg/pybricks_blockImuConfigure_TechnicHub_imu.settings_heading_correction.svg
new file mode 100644
index 0000000..b42e3a0
--- /dev/null
+++ b/doc/main/blockimg/pybricks_blockImuConfigure_TechnicHub_imu.settings_heading_correction.svg
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+  -moz-appearance: textfield;
+}
+
+.blocklyMainBackground {
+  stroke-width: 1;
+  stroke: #c6c6c6;  /* Equates to #ddd due to border being off-pixel. */
+}
+
+.blocklyMutatorBackground {
+  fill: #fff;
+  stroke: #ddd;
+  stroke-width: 1;
+}
+
+.blocklyFlyoutBackground {
+  fill: #ddd;
+  fill-opacity: .8;
+}
+
+.blocklyMainWorkspaceScrollbar {
+  z-index: 20;
+}
+
+.blocklyFlyoutScrollbar {
+  z-index: 30;
+}
+
+.blocklyScrollbarHorizontal,
+.blocklyScrollbarVertical {
+  position: absolute;
+  outline: none;
+}
+
+.blocklyScrollbarBackground {
+  opacity: 0;
+}
+
+.blocklyScrollbarHandle {
+  fill: #ccc;
+}
+
+.blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyScrollbarHandle:hover {
+  fill: #bbb;
+}
+
+/* Darken flyout scrollbars due to being on a grey background. */
+/* By contrast, workspace scrollbars are on a white background. */
+.blocklyFlyout .blocklyScrollbarHandle {
+  fill: #bbb;
+}
+
+.blocklyFlyout .blocklyScrollbarBackground:hover+.blocklyScrollbarHandle,
+.blocklyFlyout .blocklyScrollbarHandle:hover {
+  fill: #aaa;
+}
+
+.blocklyInvalidInput {
+  background: #faa;
+}
+
+.blocklyVerticalMarker {
+  stroke-width: 3px;
+  fill: rgba(255,255,255,.5);
+  pointer-events: none;
+}
+
+.blocklyComputeCanvas {
+  position: absolute;
+  width: 0;
+  height: 0;
+}
+
+.blocklyNoPointerEvents {
+  pointer-events: none;
+}
+
+.blocklyContextMenu {
+  border-radius: 4px;
+  max-height: 100%;
+}
+
+.blocklyDropdownMenu {
+  border-radius: 2px;
+  padding: 0 !important;
+}
+
+.blocklyDropdownMenu .blocklyMenuItem {
+  /* 28px on the left for icon or checkbox. */
+  padding-left: 28px;
+}
+
+/* BiDi override for the resting state. */
+.blocklyDropdownMenu .blocklyMenuItemRtl {
+  /* Flip left/right padding for BiDi. */
+  padding-left: 5px;
+  padding-right: 28px;
+}
+
+.blocklyWidgetDiv .blocklyMenu {
+  background: #fff;
+  border: 1px solid transparent;
+  box-shadow: 0 0 3px 1px rgba(0,0,0,.3);
+  font: normal 13px Arial, sans-serif;
+  margin: 0;
+  outline: none;
+  padding: 4px 0;
+  position: absolute;
+  overflow-y: auto;
+  overflow-x: hidden;
+  max-height: 100%;
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+.blocklyWidgetDiv .blocklyMenu.blocklyFocused {
+  box-shadow: 0 0 6px 1px rgba(0,0,0,.3);
+}
+
+.blocklyDropDownDiv .blocklyMenu {
+  background: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  border: inherit;  /* Compatibility with gapi, reset from goog-menu */
+  font: normal 13px "Helvetica Neue", Helvetica, sans-serif;
+  outline: none;
+  position: relative;  /* Compatibility with gapi, reset from goog-menu */
+  z-index: 20000;  /* Arbitrary, but some apps depend on it... */
+}
+
+/* State: resting. */
+.blocklyMenuItem {
+  border: none;
+  color: #000;
+  cursor: pointer;
+  list-style: none;
+  margin: 0;
+  /* 7em on the right for shortcut. */
+  min-width: 7em;
+  padding: 6px 15px;
+  white-space: nowrap;
+}
+
+/* State: disabled. */
+.blocklyMenuItemDisabled {
+  color: #ccc;
+  cursor: inherit;
+}
+
+/* State: hover. */
+.blocklyMenuItemHighlight {
+  background-color: rgba(0,0,0,.1);
+}
+
+/* State: selected/checked. */
+.blocklyMenuItemCheckbox {
+  height: 16px;
+  position: absolute;
+  width: 16px;
+}
+
+.blocklyMenuItemSelected .blocklyMenuItemCheckbox {
+  background: url(https://blockly-demo.appspot.com/static/media/sprites.png) no-repeat -48px -16px;
+  float: left;
+  margin-left: -24px;
+  position: static;  /* Scroll with the menu. */
+}
+
+.blocklyMenuItemRtl .blocklyMenuItemCheckbox {
+  float: right;
+  margin-right: -24px;
+}
+
+
+.blocklyZoom&gt;image, .blocklyZoom&gt;svg&gt;image {
+  opacity: .4;
+}
+
+.blocklyZoom&gt;image:hover, .blocklyZoom&gt;svg&gt;image:hover {
+  opacity: .6;
+}
+
+.blocklyZoom&gt;image:active, .blocklyZoom&gt;svg&gt;image:active {
+  opacity: .8;
+}
+
+
+.blocklyCommentForeignObject {
+  position: relative;
+  z-index: 0;
+}
+
+.blocklyCommentRect {
+  fill: #E7DE8E;
+  stroke: #bcA903;
+  stroke-width: 1px;
+}
+
+.blocklyCommentTarget {
+  fill: transparent;
+  stroke: #bcA903;
+}
+
+.blocklyCommentTargetFocused {
+  fill: none;
+}
+
+.blocklyCommentHandleTarget {
+  fill: none;
+}
+
+.blocklyCommentHandleTargetFocused {
+  fill: transparent;
+}
+
+.blocklyFocused&gt;.blocklyCommentRect {
+  fill: #B9B272;
+  stroke: #B9B272;
+}
+
+.blocklySelected&gt;.blocklyCommentTarget {
+  stroke: #fc3;
+  stroke-width: 3px;
+}
+
+.blocklyCommentDeleteIcon {
+  cursor: pointer;
+  fill: #000;
+  display: none;
+}
+
+.blocklySelected &gt; .blocklyCommentDeleteIcon {
+  display: block;
+}
+
+.blocklyDeleteIconShape {
+  fill: #000;
+  stroke: #000;
+  stroke-width: 1px;
+}
+
+.blocklyDeleteIconShape.blocklyDeleteIconHighlighted {
+  stroke: #fc3;
+}
+
+
+.blocklyCommentTextarea {
+  background-color: #fef49c;
+  border: 0;
+  display: block;
+  margin: 0;
+  outline: 0;
+  padding: 3px;
+  resize: none;
+  text-overflow: hidden;
+}
+
+
+.blocklyAngleCircle {
+  stroke: #444;
+  stroke-width: 1;
+  fill: #ddd;
+  fill-opacity: 0.8;
+}
+
+.blocklyAngleMarks {
+  stroke: #444;
+  stroke-width: 1;
+}
+
+.blocklyAngleGauge {
+  fill: #f88;
+  fill-opacity: 0.8;
+  pointer-events: none;
+}
+
+.blocklyAngleLine {
+  stroke: #f00;
+  stroke-width: 2;
+  stroke-linecap: round;
+  pointer-events: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.blocklyHtmlTextAreaInput {
+  font-family: monospace;
+  resize: none;
+  overflow: hidden;
+  height: 100%;
+  text-align: left;
+}
+
+.blocklyHtmlTextAreaInputOverflowedY {
+  overflow-y: scroll;
+}
+
+
+.blocklyFlyoutButton {
+  fill: #888;
+  cursor: default;
+}
+
+.blocklyFlyoutButtonShadow {
+  fill: #666;
+}
+
+.blocklyFlyoutButton:hover {
+  fill: #aaa;
+}
+
+.blocklyFlyoutLabel {
+  cursor: default;
+}
+
+.blocklyFlyoutLabelBackground {
+  opacity: 0;
+}
+
+
+.blocklyTreeRow:not(.blocklyTreeSelected):hover {
+  background-color: rgba(255, 255, 255, .2);
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyToolboxCategory {
+  margin: 1px 5px 1px 0;
+}
+
+.blocklyToolboxDiv[dir="RTL"][layout="h"] .blocklyToolboxCategory {
+  margin: 1px 0 1px 5px;
+}
+
+.blocklyTreeRow {
+  height: 22px;
+  line-height: 22px;
+  margin-bottom: 3px;
+  padding-right: 8px;
+  white-space: nowrap;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeRow {
+  margin-left: 8px;
+  padding-right: 0;
+}
+
+.blocklyTreeIcon {
+  background-image: url(https://blockly-demo.appspot.com/static/media/sprites.png);
+  height: 16px;
+  vertical-align: middle;
+  visibility: hidden;
+  width: 16px;
+}
+
+.blocklyTreeIconClosed {
+  background-position: -32px -1px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeIconClosed {
+  background-position: 0 -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: -32px -17px;
+}
+
+.blocklyToolboxDiv[dir="RTL"] .blocklyTreeSelected&gt;.blocklyTreeIconClosed {
+  background-position: 0 -17px;
+}
+
+.blocklyTreeIconOpen {
+  background-position: -16px -1px;
+}
+
+.blocklyTreeSelected&gt;.blocklyTreeIconOpen {
+  background-position: -16px -17px;
+}
+
+.blocklyTreeLabel {
+  cursor: default;
+  font: 16px sans-serif;
+  padding: 0 3px;
+  vertical-align: middle;
+}
+
+.blocklyToolboxDelete .blocklyTreeLabel {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyTreeSelected .blocklyTreeLabel {
+  color: #fff;
+}
+
+
+.blocklyTreeSeparator {
+  border-bottom: solid #e5e5e5 1px;
+  height: 0;
+  margin: 5px 0;
+}
+
+.blocklyToolboxDiv[layout="h"] .blocklyTreeSeparator {
+  border-right: solid #e5e5e5 1px;
+  border-bottom: none;
+  height: auto;
+  margin: 0 5px 0 5px;
+  padding: 5px 0;
+  width: 0;
+}
+
+
+.blocklyToolboxDelete {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handdelete.cur"), auto;
+}
+
+.blocklyToolboxGrab {
+  cursor: url("https://blockly-demo.appspot.com/static/media/handclosed.cur"), auto;
+  cursor: grabbing;
+  cursor: -webkit-grabbing;
+}
+
+/* Category tree in Toolbox. */
+.blocklyToolboxDiv {
+  background-color: #ddd;
+  overflow-x: visible;
+  overflow-y: auto;
+  padding: 4px 0 4px 0;
+  position: absolute;
+  z-index: 70;  /* so blocks go under toolbox when dragging */
+  -webkit-tap-highlight-color: transparent;  /* issue #1345 */
+}
+
+.blocklyToolboxContents {
+  display: flex;
+  flex-wrap: wrap;
+  flex-direction: column;
+}
+
+.blocklyToolboxContents:focus {
+  outline: none;
+}
+
+
+.blocklyColourTable {
+  border-collapse: collapse;
+  display: block;
+  outline: none;
+  padding: 1px;
+}
+
+.blocklyColourTable&gt;tr&gt;td {
+  border: 0.5px solid #888;
+  box-sizing: border-box;
+  cursor: pointer;
+  display: inline-block;
+  height: 20px;
+  padding: 0;
+  width: 20px;
+}
+
+.blocklyColourTable&gt;tr&gt;td.blocklyColourHighlighted {
+  border-color: #eee;
+  box-shadow: 2px 2px 7px 2px rgba(0, 0, 0, 0.3);
+  position: relative;
+}
+
+.blocklyColourSelected, .blocklyColourSelected:hover {
+  border-color: #eee !important;
+  outline: 1px solid #333;
+  position: relative;
+}
+
+
+.fieldColourSliderContainer {
+  padding: 4px;
+}
+.fieldColourSliderContainer hr {
+  border: none;
+  border-top: 1px solid #bbb;
+}
+.fieldColourSliderLabel {
+  display: flex;
+  justify-content: space-between;
+  font: 12pt "Helvetica Neue", "Segoe UI", Helvetica, sans-serif;
+}
+.fieldColourEyedropper {
+  appearance: none;
+  position: relative;
+  border: none;
+  border-radius: 4px;
+  background: transparent;
+  font: inherit;
+  color: inherit;
+  cursor: pointer;
+  width: 100%;
+  margin: 0;
+  display: flex;
+  justify-content: center;
+  align-items: center;
+}
+.fieldColourEyedropper:hover {
+  background: rgba(0,0,0,0.1)
+}
+.fieldColourEyedropper input {
+  opacity: 0;
+  position: absolute;
+  top: 0;
+  left: 0;
+  right: 0;
+  bottom: 0;
+}
+.fieldColourEyedropper::before {
+  content: "Eyedropper";
+}
+.fieldColourEyedropper::after {
+  content: "";
+  margin-left: 8px;
+  width: 24px;
+  height: 24px;
+  background: currentColor;
+  pointer-events: none;
+  -webkit-mask-image: var(--customize-dial-symbol);
+  -webkit-mask-repeat: no-repeat;
+  -webkit-mask-position: center;
+  mask-image: var(--customize-dial-symbol);
+  mask-repeat: no-repeat;
+  mask-position: center;
+  --customize-dial-symbol: url('data:image/svg+xml,    &lt;svg xmlns="http://www.w3.org/2000/svg"          width="24px" height="24px"          viewBox="0 0 24 24"&gt;       &lt;path stroke="black" strokewidth="1.414" fill="none"             d="m 13 8 L 6 15 Q 3 18 2 21 Q 0 23 .5 23.5 Q 1 24 3 22                 Q 6 21 9 18 L 16 11"/&gt;       &lt;path fill="black"             d="m 12 7 Q 11 6 12 5 Q 13 4 14 5 Q 15 6 16 5 Q 20 -1 22.5 1.5                 Q 25 4 19 8 Q 18 9 19 10 Q 20 11 19 12 Q 18 13 17 12"/&gt;     &lt;/svg&gt;');
+}
+.fieldColourSlider {
+  -webkit-appearance: none;
+  width: 150px;
+  height: 24px;
+  margin: 4px 8px 24px 8px;
+  padding: 0;
+}
+.fieldColourSlider:last-child {
+  margin-bottom: 4px;
+}
+.fieldColourSlider:focus {
+  outline: none;
+}
+/* Webkit */
+.fieldColourSlider::-webkit-slider-runnable-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-webkit-slider-thumb {
+  -webkit-appearance: none;
+  background: #fff;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+  margin-top: -4px;
+}
+/* Firefox */
+.fieldColourSlider::-moz-range-track {
+  background: var(--slider-track-background);
+  border-radius: 8px;
+  height: 16px;
+}
+.fieldColourSlider::-moz-range-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+.fieldColourSlider::-moz-focus-outer {
+  /* override the focus border style */
+  border: 0;
+}
+/* IE */
+.fieldColourSlider::-ms-track {
+  background: var(--slider-track-background);
+  border-radius: 12px;
+  width: 100%;
+  height: 24px;
+  /* remove default tick marks */
+  color: transparent;
+}
+.fieldColourSlider::-ms-fill-lower  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-fill-upper  {
+  background: transparent;
+}
+.fieldColourSlider::-ms-thumb {
+  background: #fff;
+  border: none;
+  border-radius: 50%;
+  box-shadow: 0 0 0 4px rgba(0,0,0,.15);
+  cursor: pointer;
+  width: 24px;
+  height: 24px;
+}
+
+
+.blocklyMultilineText {
+    fill: #fff !important;
+}
+  
+
+.blocklyMultiselect&gt;image, .blocklyMultiselect&gt;svg&gt;image {
+  opacity: .2;
+}
+
+.blocklyMultiselect&gt;image:hover, .blocklyMultiselect&gt;svg&gt;image:hover {
+  opacity: .4;
+}
+
+.blocklyMultiselect&gt;image:active, .blocklyMultiselect&gt;svg&gt;image:active {
+  opacity: .6;
+}
+
+
+  .controlsIconStyleLightTheme {
+    opacity: 0.2;
+  }
+  .controlsIconStyleLightTheme:hover {
+    opacity: 0.4;
+  }
+  .controlsIconStyleLightTheme:active {
+    opacity: 0.6;
+  }
+  
+
+  .controlsIconStyleDarkTheme {
+    opacity: 0.4;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:hover {
+    opacity: 0.6;
+    filter: invert(1);
+  }
+  .controlsIconStyleDarkTheme:active {
+    opacity: 0.8;
+    filter: invert(1);
+  }
+  
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\ No newline at end of file
diff --git a/doc/main/hubs/essentialhub.rst b/doc/main/hubs/essentialhub.rst
index 5f78b24..772e3fd 100644
--- a/doc/main/hubs/essentialhub.rst
+++ b/doc/main/hubs/essentialhub.rst
@@ -91,6 +91,15 @@ Essential Hub
 
     .. automethod:: pybricks.hubs::EssentialHub.imu.orientation
 
+    .. blockimg:: pybricks_blockImuConfigure_EssentialHub_imu.settings_heading_correction
+        :stack:
+
+    .. blockimg:: pybricks_blockImuConfigure_EssentialHub_imu.settings_angular_velocity_threshold
+        :stack:
+
+    .. blockimg:: pybricks_blockImuConfigure_EssentialHub_imu.settings_acceleration_threshold
+        :stack:
+
     .. automethod:: pybricks.hubs::EssentialHub.imu.settings
 
     .. rubric:: Using connectionless Bluetooth messaging
diff --git a/doc/main/hubs/primehub.rst b/doc/main/hubs/primehub.rst
index e01f54a..ca849b5 100644
--- a/doc/main/hubs/primehub.rst
+++ b/doc/main/hubs/primehub.rst
@@ -138,6 +138,15 @@ Prime Hub / Inventor Hub
 
     .. automethod:: pybricks.hubs::PrimeHub.imu.orientation
 
+    .. blockimg:: pybricks_blockImuConfigure_PrimeHub_imu.settings_heading_correction
+        :stack:
+
+    .. blockimg:: pybricks_blockImuConfigure_PrimeHub_imu.settings_angular_velocity_threshold
+        :stack:
+
+    .. blockimg:: pybricks_blockImuConfigure_PrimeHub_imu.settings_acceleration_threshold
+        :stack:
+
     .. automethod:: pybricks.hubs::PrimeHub.imu.settings
 
     .. rubric:: Using the speaker
diff --git a/doc/main/hubs/technichub.rst b/doc/main/hubs/technichub.rst
index 6cad3fa..32369bb 100644
--- a/doc/main/hubs/technichub.rst
+++ b/doc/main/hubs/technichub.rst
@@ -78,6 +78,15 @@ Technic Hub
 
     .. automethod:: pybricks.hubs::TechnicHub.imu.orientation
 
+    .. blockimg:: pybricks_blockImuConfigure_TechnicHub_imu.settings_heading_correction
+        :stack:
+
+    .. blockimg:: pybricks_blockImuConfigure_TechnicHub_imu.settings_angular_velocity_threshold
+        :stack:
+
+    .. blockimg:: pybricks_blockImuConfigure_TechnicHub_imu.settings_acceleration_threshold
+        :stack:
+
     .. automethod:: pybricks.hubs::TechnicHub.imu.settings
 
     .. rubric:: Using connectionless Bluetooth messaging