paint job

noun2

1. •
   The act, or the result of painting or repainting something

   • His car has a great new paint job.
2. •
   (figurative) A modification to something which appears flashy or impressive but is actually superficial.

   • "Some seem to think that the Gun Metal Gray is just a "paint job", which it is not," wrote Konami's community relations operatives in a recent public forum post. — 2008