My suggestion is to allow body textures to be transparent so you can see the colour of the gradient under it.

Joint textures are more like tattoos, they show over the colour of the joint. However, body textures don't do this. By making body textures "tattoos", you would be able to see the gradient colour under it. This would work really well with Pure colours, as pure is whiter than the normal white, so this way you dont have slightly greyed textures with the Pure force.

This would also help people who make textures to fit different sets, as instead of making multiple texture files with different colours, you can have one set with see-through parts in order to see the gradient underneath. While this may not be the best way to save Tc, it will help free some space on computers, and reduce clutter.