Oh please no... please please no.
At least give us something we can download to undo this change if you are adding it. I currently play a dragon that is black as my main character and making a change that for the most part fits well with most of the lighter colored textures but clashes horribly with my original choice in skins and textures.
As it was previously you had a choice to add it or not when it was a player customization... if this is made perminent at least give us an optional mod to undo it. I make small mods to the mechanics of the game, I am not an artist really capable of modding the art of a game.