> UI colors can have different meanings in different cultures.

Really? Can you provide actual examples?

JFYI, I speak Russian, Ukrainian, German, and Mandarin Chinese. I've used native-written apps in all these languages, and I have not seen any significant variations in the UI color selections.

I guess Mandarin Chinese is probably the best example because the red color is seen as more "festive", so it's more common in various app icons.