Oh wait never mind I now reread that question and understand what you're saying, think that they changed the Hue by using like the Hue thing on maybe procreate where you could just take the whole drawing and change the colors of it I think I think they're just like using a slider, I know this comment has a lot of the words I think in it but I have a vague idea of what they're doing and I'm not sure if that's what they're doing or if they're not doing that
