Oh, that must have come out recently, then. All I ever heard was birefringent cellulose, whic was presumed to be clear shellac.
I had no idea what context that question was framed within.
I've read two different sites with autospy reports, but I believe I got this info from the one with the pictures. I'm assuming that the paint came from the handle as it seems logical. I know that my paint brushes have paint splashes all over them. The report referred to wood fragments recovered from the vaginal tract.