The stage's background color can visible on screencasts when multiple monitors
with different resolutions are in use.
Change it to from blue to grey to look better as requested by the designers.
https://bugzilla.gnome.org/show_bug.cgi?id=683514
const Util = imports.misc.util;
const OVERRIDES_SCHEMA = 'org.gnome.shell.overrides';
-const DEFAULT_BACKGROUND_COLOR = Clutter.Color.from_pixel(0x2266bbff);
+const DEFAULT_BACKGROUND_COLOR = Clutter.Color.from_pixel(0x2e3436ff);
let componentManager = null;
let panel = null;