Backed out 2 changesets (bug 1719734, bug 1710934) for causing bc failures in browser_ext_themes_highlight. CLOSED TREE

Backed out changeset 74a832b24286 (bug 1719734)
Backed out changeset 9f6b5145351a (bug 1710934)

browser/themes/shared/urlbar-searchbar.inc.css

@@ -142,27 +142,10 @@
   border-color: color-mix(in srgb, currentColor 20%, transparent);
 }
 
-#urlbar-input:-moz-lwtheme::selection,
-.searchbar-textbox:-moz-lwtheme::selection {
-  background-color: var(--lwt-toolbar-field-highlight, -moz-system-color(text-select-background, light));
-  color: var(--lwt-toolbar-field-highlight-text, -moz-system-color(text-select-foreground, light));
-}
-
-#urlbar-input:not(:focus):-moz-lwtheme::selection,
-.searchbar-textbox:not(:focus-within):-moz-lwtheme::selection {
-  background-color: -moz-system-color(text-select-background-disabled, light);
-}
-
-:root[lwt-toolbar-field-focus-brighttext] #urlbar-input:focus::selection,
-:root[lwt-toolbar-field-focus-brighttext] .searchbar-textbox:focus-within::selection {
-  background-color: var(--lwt-toolbar-field-highlight, -moz-system-color(text-select-background, dark));
-  color: var(--lwt-toolbar-field-highlight-text, -moz-system-color(text-select-foreground, dark));
-}
-
-:root[lwt-toolbar-field-brighttext] #urlbar-input:not(:focus)::selection,
-:root[lwt-toolbar-field-brighttext] .searchbar-textbox:not(:focus-within)::selection {
-  background-color: var(--lwt-toolbar-field-highlight, -moz-system-color(text-select-background-disabled, dark));
-  color: var(--lwt-toolbar-field-highlight-text, -moz-system-color(text-select-foreground, dark));
+:root[lwt-selection] #urlbar-input:-moz-lwtheme::selection,
+:root[lwt-selection] .searchbar-textbox:-moz-lwtheme::selection {
+  background-color: var(--lwt-toolbar-field-highlight, Highlight);
+  color: var(--lwt-toolbar-field-highlight-text, HighlightText);
 }
 
 #urlbar:not([focused="true"]) {

modules/libpref/init/StaticPrefList.yaml

@@ -11563,7 +11563,7 @@
 
 - name: widget.macos.support-dark-appearance
   type: RelaxedAtomicBool
-  value: true
+  value: @IS_EARLY_BETA_OR_EARLIER@
   mirror: always
 #endif
 

toolkit/modules/LightweightThemeConsumer.jsm

@@ -195,8 +195,10 @@ const toolkitVariableMap = [
       lwtProperty: "toolbar_field_highlight",
       processColor(rgbaChannels, element) {
         if (!rgbaChannels) {
+          element.removeAttribute("lwt-selection");
           return null;
         }
+        element.setAttribute("lwt-selection", "true");
         const { r, g, b, a } = rgbaChannels;
         return `rgba(${r}, ${g}, ${b}, ${a})`;
       },