It seems much easier for terminal and IDE apps to choose background colors to apply to sections of code when your app background is light; with a dark app backg

It seems much easier for terminal and IDE apps to choose background colors to apply to sections of code when your app background is light; with a dark app background it seems harder to find pairs of text bg and fg colors that are clearly distinguishable and also distinguishable from the app background. That said, I'm the author of an app with this challenge so would love help/suggestions on this front. (Is there any theoretical reason for it to be true?)