Howdy,
I'm working on implementing the slime people race. Anyone know where in the code hairstyles are handled? Only option available right now is bald for the new race. Skeleton custom race likely has the same issue (although probably intentional for them).
I know it's not in station.dm, where new races are declared.
EDIT: Found it. It's in module\mob\new_player\sprite_accessories.dm . This file allows you to add species to hair/whatever allowed lists.
Make sure to add an entry for them in in module\mod\living\carbon\human\species\station\station.dm and in \carbon\human\human_species.dm first though.