I need to ask this question again:
Solus Budgie here. The problem I'm having is that all of a sudden Caja (I hate Nautilus with a vengeance), Budgie Control Center, and Software Center aren't displayed in dark mode anymore and I can, for the life of me, not figure out where to set it back to how it was. I checked both gnome-control-center and Budgie Desktop Settings and both were set to Dark Mode. Funnily, the latter was displayed in dark mode. What else could I try?
@brent seems to have the same problem.