What I meant with "Original color" was for example, my dragon is dark grayish. So the gradient would be partialy transparent or something like that to be still dark grayish, and the only coloured gradient part would be the color you wanna add, for example, yellow.
I don't know if you get me.
Also because of the libs and stuff you sayd I told only to tint the paws so it doesn't reach over shoulders to the back or rest of the body, so less work.
Tho I don't know how the textures are actually, but you might get the idea of what I have in mind. Let me see if I can work a "sketchy" thing.



Here, the yellow parts are supposed to be colored, the rest is the normal body color of your dragon. Is there a way to do that? So the yellow (or whatever other color) fades to the color of your dragon?