Fix bug where the dimmed background wasn't drawn below the scrollview. Also clean up background image drawing and snapshotting.
Retire the 'closing hotkey window switches spaces flag'.
Turn off content shadow only when there is a transparent window. Fixes issue 2925.
Split up compount pref for compact tabs into separate prefs for hide tab close button and number. This will reset everyone's prefs since they now default to off, which is the better default.
Allow key actions that select a menu item by name to select alternates as well. Fixes issue 2920.