From 8a43dc936a8100bee5d33102f02ee9434d4a9e14 Mon Sep 17 00:00:00 2001
From: Laurens Valk <laurens@pybricks.com>
Date: Tue, 7 Jul 2020 09:22:07 +0200
Subject: [PATCH] doc/signaltypes: add hue placeholder

We will have to add a helpful diagram, but having the placeholder allows us to link to it already.
---
 doc/api/signaltypes.rst | 8 ++++++++
 pybricks/_common.py     | 2 +-
 pybricks/pupdevices.py  | 2 +-
 3 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/doc/api/signaltypes.rst b/doc/api/signaltypes.rst
index 53b54e9..ee7c4a2 100644
--- a/doc/api/signaltypes.rst
+++ b/doc/api/signaltypes.rst
@@ -242,3 +242,11 @@ Fahrenheit (°F) or Kelvin (K), you can use the following conversion formulas:
     :math:`°\!F = °\!C \cdot \frac{9}{5} + 32`.
 
     :math:`K = °\!C + 273.15`.
+
+.. _hue:
+
+hue: deg
+--------------
+Hue of a color (0-359 degrees).
+
+TODO: diagram
diff --git a/pybricks/_common.py b/pybricks/_common.py
index 8db83b1..dc15a04 100644
--- a/pybricks/_common.py
+++ b/pybricks/_common.py
@@ -448,7 +448,7 @@ class ColorLight:
         """Set the hue, saturation and brightness of the light.
 
         Arguments:
-            hue (:ref:`angle`): Hue of the color.
+            hue (:ref:`hue`): Hue of the color.
             saturation (:ref:`percentage`): Saturation of the color.
             value (:ref:`percentage`): Brightness value of the color.
         """
diff --git a/pybricks/pupdevices.py b/pybricks/pupdevices.py
index dec45af..1d70cdc 100644
--- a/pybricks/pupdevices.py
+++ b/pybricks/pupdevices.py
@@ -212,7 +212,7 @@ class ColorSensor:
 
         :returns: Tuple with the hue, saturation, and value
             (brightness) of the color.
-        :rtype: (:ref:`angle`, :ref:`percentage`, :ref:`percentage`)
+        :rtype: (:ref:`hue`, :ref:`percentage`, :ref:`percentage`)
 
         """
         pass