Board Thread:General Discussion/@comment-26099499-20150226151824/@comment-3257939-20150315174903

Or it could have something to do with their semblances. And you forgot to mention Jaune. It can be really hard to miss but the tips of Jaune's blonde hair are light yellow, almost as if his hair was turning white. However, in the illustrations and some scenes, his hair is completely yellow. Maybe it was an animation error or some hidden message about aura & semblances and what they do to the hunters who unlock them.