Oh. Hadn’t thought about it yet, but that does sound like it would work.
I mean it even says “Roughness”, so now that I think of it, it would make sense that the lighter areas would indicate a rougher surface which means less specularity and vice versa.
Thanks a lot for your help!
It will have to wait until after my nightshift until I can try it out but I suppose that’s it. 😀
Cheers