bug#57639: [PATCH] Add new command 'toggle-theme'

[Stefan Kangas]

Philip Kaludercic <philipk@posteo.net> writes:

> Find below a patch for a command that a lot of custom themes
> re-implement, whenever there exists a light and dark variant.

Could/should this be generalized to more than two variants?

The gruvbox theme, for example, has these variants:

    gruvbox-dark-hard
    gruvbox-dark-medium
    gruvbox-dark-soft
    gruvbox-light-hard
    gruvbox-light-medium
    gruvbox-light-soft

But I'm not sure what a reasonable user interface would look like.