dynamike, nekokami beat me to it, so I'll just add that acrylic paints are water soluble
while wet. Once they dry, they are harder to remove (though none, as far as I know, require anything like turpentine). If it's not going to work, you can probably just scrape it off with a fingernail.
Good luck. I guess I'm one of the lucky ones who doesn't mind the frame of light at all.
