On 2020-11-21, 08:06 +0530, Pankaj Jangid <pankaj@codeisgreat.org> wrote:

> Stefan Monnier <monnier@iro.umontreal.ca> writes:
>
>> Based on previous discussions, I think we should add some way to toggle
>> the dark/light mode.  I'm not completely sure what the interface should
>> look like, nor what'd be the better implementation, but see the patch
>> below for a first cut to add a `night-mode` command, which does
>> basically the "inverse video" by swapping the foreground and the
>> background of the default face (and then resetting the background-mode
>> accordingly, of course).
>
> Your's is a more generic solution I guess. But after inclusion of
> `modus-themes', I just use this snippet,
>
> (defun modus-theme-toggle ()
>   "Toggle between modus-operandi and modus-vivendi themes."
>   (interactive)
>   (if (member 'modus-operandi custom-enabled-themes)
>       (progn
> 	(disable-theme 'modus-operandi)
> 	(load-theme 'modus-vivendi t))
>     (disable-theme 'modus-vivendi)
>     (load-theme 'modus-operandi t)))

Just to note that I am in the process of refactoring aspects of the
Modus themes.  There will be a toggle command on offer.  Please find the
current version of it attached (note that I may still change things).

-- 
Protesilaos Stavrou
protesilaos.com