I never bother with themes and such so I typically use whatever Fedora serves up. I am having trouble seeing the current FW36 iteration of GTK themes so thought I’d look for an altenative. I wandered into Settings/Appearance and was shocked to see the Ukraine colors in the default backgrounds. My first notice of IBM starting to flex their control.
Buddy, the point is that the two backgrounds contrast. Blue and yellow contrast. It’s not that deep. .
So your vote is for obtuse.