Can you be more specific? If you have damage to one, here is the problem: you can fix it like a bumper, but any sanding will render it smooth, which will not match the textured pattern of the plastic. This is a relatively new technology to be able to repair textured parts. 3m makes shaker cans which claim to be able to match many textured patterns. Regarding the color, if it is scraped, the whole thing is black so that does not even make sense because its not like metal where metal gets scraped and now you need color, but on a black cladding/trim, if it is scraped there is no color loss. Confused by your question.