Wondering if there is any possibility (even with extra cost) of a black soldermask?
Failing this, is it possible to use white soldermask and invert the silkscreen layer, so that the negative gives the impression of white on black?
Cheers :slight_smile:

Black is not provided, but you can make the white for the soldermask.

Hmm, that’s certainly an odd way to achieve what you’re after. I think it would depend on whether your CAD program could generate a Gerber file for this special silkscreen layer. Even then, it would be a pretty funky Gerber file & Seeed might not accept it.