A package which integrates with the Night Light-feature of your GNOME desktop.
Changing theme according to the time of day.
(defun theme-changer (state) (if state (my/set-dark-theme) (my/set-light-theme))) (require 'gnome-night-light) (setq gnome-night-light/light-change-callback #'theme-changer) (gnome-night-light)
The callback passed to gnome-night-light has to accept a boolean variable.
This variable is
t when the night light is active.