[Solved] Want Menus to Have Different Color Backgrounds

Also, you say "Actually you can change the menu background color right now with the overlay image." I actually do not want to change a menu background color (and that can easily be done with TLB settings). I want to change the background color for all submenus on a menu but not the menu itself.

Further, I created a background file, purple.png, which I am uploading. I went to a submenu and changed the overlay for the submenu as you instructed. The result was no change at all in the appearance of the submenu.