you can go cheap way and use a rattle can while hoping you don't scratch it or have some flakes off or if you wanted to do it the right way and have it last. get the paint from a pro paint shop and use a adheasion additive to it and spray it the right way and it will last. this is a base color (in your case parchment) with a plastics adheasion for the interior soft and hard plastics and a additive for metal. color matching is not a big deal and painting it takes a little parctice. the cost is more and you will need more tools to do it; but, no flakes and minimal scratches. your choice.
