04 Cavalier was the only car I ever purchased that came from the factory with a tube of touch up paint. But been buying Dupli-Color for years for either the spray cans or that tube with a brush on it. Every vehicle has a paint code on it, found that on my Cruze, but that was five years ago, forgot where I found it, but know it is there.
If I need a gallon, my NAPA store can mix it exactly.
Thanks to the latest throwaway part, the unibody can find parts especially on ebay, seen many sun visors there.