Just paint it black, no one will care, you'll save money and sell more units.
Reminds me of this story from lego: I gave the ducks just two coats of varnish, not three as we usually do! His dad made him redo the lot. Source: https://www.lego.com/en-us/history/articles/b-the-beginning-...
That is a pretty cool historical site for lego! Thanks for sharing it.