It looked incomplete without paint.
I tried red paint and using a very small jewelers screw driver to get into the tiny corners. But it was rather tedious and wasn't a smooth finish.
A black sharpie marker worked out well. Just need to clean up the rough edges with some rubbing alcohol and seal it with clear coat. Permanent markers aren't that permanent, unless it's on paper.
I may still paint it all red and really get some confused. Make them think it's some crazy looking Moto Guzzi.