Re: Question about customising faces

[Eli Zaretskii]

> Date: Tue, 30 Aug 2022 18:48:47 +0000
> From: Gregory Heytings <gregory@heytings.org>
> cc: help-gnu-emacs@gnu.org
> 
> > Joost used nil, not 'unspecified, for the background attribute.
> >
> 
> Which is why I asked why he did not use 'unspecified instead of nil 😉
> 
> What does nil do that 'unspecified doesn't?

Actually, nil is not valid as a color, but people still use it.

See the discussion of bug#54156.