[css-color-adjust] Per WG resolution, specify that forced colors mode also adjust 'color-scheme' to match user preference. #3885

Author: tabatkins

css-color-adjust-1/Overview.bs

@@ -389,6 +389,10 @@ Properties Affected by Forced Colors Mode {#forced-colors-properties}
 	Additionally, on <em>on user input controls (except button-like controls) only</em>,
 	'background-image'.
 
+	'color-scheme' on the element must compute to ''light dark'',
+	to allow the user preference (see [[#forced|above]])
+	to be respected.
+
 	Based on the resulting [=computed value|computed=] 'color' value,
 	the [computed|used] 'background-color' of an element is forced
 	by matching all channels other than alpha