I'd like to suggest that character hairstyles be made dyeable in the game, since they are technically hats (gear). They cost Crowns already, so it's kind of unfair to make us buy a new one every time we want a colour change. Plus, having many hairstyles takes up backpack/bank space because we're carrying duplicate items. If you can change your base hair colour in the Magic Mirror shop, surely it would be possible to make wigs dyeable in the Wizard City Dye Shop.
In addition this would make wig farming (for those of us that are on a budget) pretty easy as we just need one drop rather than getting the 50th drop of a color we don't need.