Hey, I am working with your theme and it´s really fun!
Now I would like to modify the BACKGROUND COLORS of the MAIN- and SUB-MENU. What must I change to apply different initial, hover and active-state colors?
I am unsing: Fixed Header with Social Icons and additional Navigation
Please examine the block of css in this post https://kriesi.at/support/topic/enfold-responsive-slide-out-menu-issue#post-112059
It has almost everything you need to customize the menu , rollovers, etc.. You can try it as is to get idea first. You should add it to your /css/custom.css file OR to Quick CSS located in Enfold > Theme Options Styling .. the text area at bottom of that page