Themes: Allow theming navbar bg color

Change-Id: I256afc30fc018ea752769029c5246bc7310c23a6
settings: Fix loading of some initial values

Change-Id: I41658dd8dc3f31b4463ae4d4f3cd6f480a0ccba3
Merge remote-tracking branch 'upstream/cm-11.0' into cm-11.0