Hello, I agree with the other suggestion. Solvent will pull the color out of leather, and depending on the solvent, vinyl too. But this is what I do. And it can be done, if done carefully.First, you don't attack any paint on any trim with gobs of any solvent. Removing overspray correctly, is a bit of a craft. If the hand cleaner with pumice doesn't work, use #870 urathane reducer and a small artist brush, made out of hogs hair, also called a whity. Cover all corresponding areas with towels, except the affected area. Have a small, untippable vessel dip the whity in the solvent. Blot the brush on a clean rag, so there is just enough solvent left in the brush to barely wet the paint spot. Dab paint spot then dab with clean, dry rag.Continue patiently, this procedure, until you have wetted, and lifted the overspray up into the clean rag. Scraping with an exacto knife is risky, will suade affect the leather, if you are not careful. More to this than there is room. If you need anymore help, just ask.