Though I doubt it, is there any means of changing the background color of the Activity menu and dialogs? Overlaying a red panel probably won't do the trick as the menu is at the top of the z-index.
Reason being for asking, astronomy applications often require that the entire screen turns to dark red to assume night view mode.
Thank you, Erel, that's fine with me. I can put together a custom menu with bitmap drawable Labels on a Panel with the required colors.
The dialogs will be harder to manage