I didn't make it!
I downloaded and installed doofdillas recolored potions and the ceano addon for it. It works fine, I love it, but when I make a potion it isn't properly textured. It is the original pink or green. The mesh is there, but the whole thing is monotonously colored. It seems like it should work, there aren't any surviving textures of the original. If anyone's found a way to fix this, let me know, thanks
Try archive invalidation.