colourman

noun2

1. •
   A commentator employed to provide background information, analysis, etc., on a given news or sports event.
2. •
   A man who sells (and, formerly, prepares) an artist's paints.

   • The Least, my Colourman will run away with, is fifty pounds per annum; my house with taxes stand me at least in Seventy […]. — 1791