Sorry about the delay - reinstalled Catalina a few days ago, not because of a destruction of the OS but because I was curious about why I couldn't download macOS Catalina from MacAppStore to make a more recent USB-stick. A complete reinstallation didn't do a damn thing to help. So that sucks. I was forced to use the USB-stick I already had made. There was a more recent Catalina update that changed the version number to 19A603 instead of my 19A602 version. I felt left out and wanted that. I couldn't have it.
View attachment 872718
Anyways - - I'm back and have opened up ThemeEngine and did as you suggested.
However, did you want a color for the "Normal" state? There's some in
DarkAppearance and in
GraphiteDarkAppearance beyond the colors you asked for; Rollover and Pressed states.
Also, I've learned(got help, actually) a new trick that I have implemented in the CAAR files - because they are animations, I should be able to make the files expand and subtract on their own like I imagine macOS is already doing. Not sure if anything works..
File with changed Mica-assets
Edit: In my recent "research" I found that I might have made things worse with my experimenting