Listbox API 2

I have a great looking listbox, however, I want to change (hard code) the selector background color and foreground color. I have some other colorized textfields and I would like my list box selector to match those colors. Yes… I am working around Linux Themes at this point. Eventually, I would like to hard code the entire color pallet regardless of dark/light mode for both the Windows and Linux desktop platforms. For now, lets see if I can get a matching list box selector bar.