So.
I've had two equally good ideas and I don't know which way I want to go with them.
Idea 1:
Have second player recolored outfits. So for example, Tiala would have all the pink become purple, all the black become white and all the white become black.
Idea 2:
Revive older concepts and recollection them as alternate outfits entirely. So for example:
Reconceptualize this as a Tiala outfit in Pink, Black, and White.
And I just realized I really want to reconceptualize that as a new outfit. I really do.
This is going to be so much work...