Dark Mode sheet music

[Simon Albrecht]

Hello,

I would like to obtain LilyPond output with black and white inverted 
(black background, white music and text) for on-screen use and 
projections. Does someone know how to achieve that through LilyPond 
code, or has it been done before? Should absolutely be an LSR snippet IMO.

I could probably figure out something with Ghostscript, but I’d like to 
avoid post-processing.

Best, Simon