Re: checking for light or dark background

[Eli Zaretskii]

> Date: Wed, 02 Feb 2022 09:26:02 +0000
> From:  goncholden via Users list for the GNU Emacs text editor 
> <help-gnu-emacs@gnu.org>
> 
> I want to determine whether emacs is using a light or dark background. This 
> could be set up by emacs itself
> or by a theme.

Like this:

  (frame-parameter nil 'background-mode)