GNU bug report logs - #51404
Support system dark mode on Windows 10

Previous Next

Full log

View this message in rfc822 format

From: Eli Zaretskii <eliz <at> gnu.org>
To: Vince Salvino <salvino <at> coderedcorp.com>
Cc: 51404 <at> debbugs.gnu.org
Subject: bug#51404: Support system dark mode on Windows 10
Date: Sat, 30 Oct 2021 20:39:17 +0300

> From: Vince Salvino <salvino <at> coderedcorp.com>
> CC: "51404 <at> debbugs.gnu.org" <51404 <at> debbugs.gnu.org>
> Date: Sat, 30 Oct 2021 17:13:13 +0000
> 
>  > define a variable exposed to Lisp using DEFVAR_BOOL; let's call it w32-follow-system-theme
> 
> My thought would be to give the user a bit more control. Rather than saying to follow system theme or not, perhaps they could choose from 3 values: follow theme, light, or dark, e.g.:
> 
> w32-system-theme:
> * nil: follow system theme (default)
> * light: force light mode (the old behavior)
> * dark: force dark mode

I'm not sure I understand why 'light' necessarily means the old
behavior: we didn't set any theme before this change, we just used the
Windows default.  So maybe there should be 4 values:

  nil: never follow the system theme (use Windows default)
  t: always follow the system theme
  light: force light theme (currently the same as nil)
  dark: force dark theme.

> Second, could you provide an existing value from early-init that I
> could follow as an example?

early-init is a file, called literally "early-init.el".  If you have
such a file in your ~/.emacs.d/ directory, Emacs will load it early on
during the startup.

> (I never knew early init was a thing, so I am going to research this - it will probably make my personal init customization a lot better too!)

The recommendation is to move to early-init.el only stuff that cannot
work in the normal init file.  That's because early-init is processed
when some of the infrastructure is not yet set up, so things could
fail there that will work correctly in the init file.

Previous Next

GNU bug tracking system
Copyright (C) 1999 Darren O. Benham, 1997,2003 nCipher Corporation Ltd, 1994-97 Ian Jackson.