Re: Dark Mode sheet music

[David Wright]

On Sat 28 Dec 2024 at 15:24:26 (+0100), Simon Albrecht wrote:
> 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.

Many PDF viewers will invert the display on command. For example,
 xpdf -rv (alternatively through the Xpdf.reverseVideo resource),
 zathura by pressing Ctrl-R when displaying the document,
 evince ditto with Ctrl-I,
 mupdf ditto with I.

This avoids having to keep multiple documents, and is safer in that
you're less likely to send an inverted document to a printer and
thereby waste a lot of ink or toner.

Cheers,
David.