>>38417961>Super dark skin
Yep, there is only one shade of brown for black people>Nappy hair
Hair straightening is a thing, and they're anime characters , most of them have unrealistic hair style anyway, they do it because it's more interesting than having bland and realistic hair.
The best example of it is Kiawe, they gave him an haircut that ressembles a flame as a way to evoke his role as a fire type user. But his father was given a more classic afro hair-style in the anime.