Rainbow Redux: Potions (v.4)

This is not a mod so much as a resource for other modders. This simply adds various colors of the current potion icons so that modders can have a bit more variety when designing items in their mods. It should be safe to merge this with any current mod without an issue as it only adds files and doesn't change anything currently in the game. Please feel free to use this work in your project freely as I don't ask that anyone get my permission first. I would however like to know where it is being used, simply because I would like to see what ideas people have come up with to use it in. :)