Bug 1408121: Dark theme should apply dark colors to Firefox menus. r=ntim,jaws

--HG--
extra : rebase_source : 81876115963df97045361b333c21c3bf9368396f

browser/components/nsBrowserGlue.js

@@ -705,6 +705,9 @@ BrowserGlue.prototype = {
       iconURL: "resource:///chrome/browser/content/browser/defaultthemes/dark.icon.svg",
       textcolor: "white",
       accentcolor: "black",
+      popup: "hsl(240, 5%, 5%)",
+      popup_text: "rgb(249, 249, 250)",
+      popup_border: "rgba(24, 26, 27, 0.14)",
       author: vendorShortName,
     });