Thread:Kopcap94/@comment-28732696-20150519152155/@comment-24728531-20150519155205

You should simply edit background-color and nothing more (if you only want to change color).

As example, here is code of which is responsible for sub-level of navmenu: example

To change color, you should only edit value of.

And lines is 148 for sub-level and 773 for lower-level.