I have a white 02 Silverado new last July. Being white the black and white stuff under the hood looked real good....except the hood liner/blanket was dark gray and it got to looking crummy within a few months.
I took it out and made a custom liner but that didn't work out very well...long story, so I just spray painted the original liner and reinstalled it. It looks great. I suppose I might have screwed up it's ability to absorb heat or something or other but it looks great! I'm happy.....at least until this becomes ugly too. :wavey