wait wait wait. i had leather door inserts to begin with. not cloth haha.
and yes, i simply took the door apart, removed the plastic rivets from the door panel, and painted the door panel. then reinserted.
the paint is made and distributed by a upholstery company called three rivers supplies. they are available only to vendors and if people were really interested, i could put up the color swatch booklet and get a group buy together, to save money. the paint also comes with a separate can of adhsion promoter, which makes the paint stick, and stay stuck. i,e. when this was dry, just to test their claims, i sprayed an extra piece of leather lying around, let it dry, and crumpled it up lots. the paint didnt crack or peel or anything. looked just like the plain leather. pretty cool stuff.
on a side note, if you have cloth, you can simply cover over it with actual leather and vinyl. howver, it is extremely difficult work because the shape of the inserts lends itself to the leather/vinyl coming unglued after a while. thats why i painted mine instead