Avoid setting color-scheme on :root, we're only a guest on pages (#1923)

Fixes #1922.

Author: matthiask

debug_toolbar/static/debug_toolbar/css/toolbar.css

@@ -11,7 +11,6 @@
         monospace, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol",
         "Noto Color Emoji";
 
-    color-scheme: light;
     --djdt-font-color: black;
     --djdt-background-color: white;
     --djdt-panel-content-background-color: #eee;
@@ -35,7 +34,6 @@
 
 @media (prefers-color-scheme: dark) {
     :root {
-        color-scheme: dark;
         --djdt-font-color: #8393a7;
         --djdt-background-color: #1e293bff;
         --djdt-panel-content-background-color: #0f1729ff;
@@ -58,7 +56,6 @@
 }
 
 #djDebug[data-theme="dark"] {
-    color-scheme: dark;
     --djdt-font-color: #8393a7;
     --djdt-background-color: #1e293bff;
     --djdt-panel-content-background-color: #0f1729ff;

docs/changes.rst

@@ -4,6 +4,8 @@ Change log
 Pending
 -------
 
+* Removed some CSS which wasn't carefully limited to the toolbar's elements.
+
 
 4.4.1 (2024-05-26)
 ------------------