Review on KOHLER Stonewood Toilet in White, Model 20467 0 by Larry Lackings

I've had the seat for 6 months now and it closes slowly and is a pleasure to sit on but I found the paint/paint to have yellowed so much that it's looks dirty even after cleaning. I suspect the yellowing is caused by the bleach based cleaner I use on the toilet, but I can't believe the toilet seat is incompatible with bleach or cleaning solution.