Pac did mention trying to implement measures to prevent clashing colors. Something to force 'eye-sore' color combinations away from each other. Maybe this is as a result of that.

Kinda sucks but I do get why. It's a compromise I suppose. I always like making the boards I mod match the in-game UI and for Bouncy Ball it won't let me set the panel as full white on dark theme. It just feels like this whole dark theme causes more problems then it answers. Especially since non-dark theme doesn't even have custom themes. So not everyone will even see it if they have that.