Need help trying to turn a Model's Color into a Texture for a mesh.

(DISCLAIMER) I'm new to Studio; I'm not even sure whether or not what I'm trying to do is possible. Actually transforming Model into a Mesh was easy enough, but I need to make a texture for it. Originally, I just colored the parts on the model, but I cant for the life of me find a way to either make a texture or use the colored parts to make a decal.