What i need is to change the red in the preview photo you posted to black so it matches with start menu background
I just completely wasted 30 minutes discussing solutions to a problem that I fixed in 5 minutes by installing a start menu replacement. F*ck the Windows 10 start menu. It should be killed with fire. My PC is not a phone. And that's my opinion on the subject.
I agree, GIVE UP I DID! lol wont change the start menu though but I can live with a different color other than black.
i tried a black high contrast theme the pure black is there (everywhere ) but high contrast theme sucks So i am working with Blue