It makes sense, but I don't think it'll be implemented. I think that toribashes engine won't suppport certain things, that being one of them. Even hamza at one point mentioned that his code was ultimately very messy and haywire. Because of this, toribash can't do cool things like have the ability to show relax colour. I'm guessing that this is because toribash uploads the whole texture to the joint, and it doesn't have the ability to distinguish held joints from relaxed, and contrasted from extended, and so on. Good idea for TBN though, I'd love to see this kind of thing on a mod advanced system