diff --git a/doc/common/_static/css/theme_overrides.css b/doc/common/_static/css/theme_overrides.css
index ff1535e..9d7c752 100644
--- a/doc/common/_static/css/theme_overrides.css
+++ b/doc/common/_static/css/theme_overrides.css
@@ -41,3 +41,7 @@ span.caption-number:after {
 .figure > a.reference.external::after {
     content: none !important;
 }
+
+.wy-side-nav-search > div.version {
+    color: hsla(0, 0%, 100%, 0.75);
+}
diff --git a/doc/common/conf.py b/doc/common/conf.py
index ac970c0..89f1fab 100644
--- a/doc/common/conf.py
+++ b/doc/common/conf.py
@@ -169,6 +169,7 @@ html_context = {
 html_theme_options = {
     "style_external_links": True,
     "logo_only": True,
+    "style_nav_header_background": "#0088ce",  # Pybricks blue
 }
 
 # Add any paths that contain custom static files (such as style sheets) here,
diff --git a/doc/common/images/pybricks-logo-rtd.png b/doc/common/images/pybricks-logo-rtd.png
index 57a81d4..6637d7d 100644
Binary files a/doc/common/images/pybricks-logo-rtd.png and b/doc/common/images/pybricks-logo-rtd.png differ