>>348121706
RGBA map?
I don't know about A but you can certainly use color maps for emission, for my eyes I use color maps and for the other stuff I have a white/black map set to just the R channel so I can have it uncompressed at like 200 KB, there's some neat stuff like hue shifters too that are literally built for avatar 3.0 and it's how most public avatars have color sliders in the sub menu