[Feature Request] Keyboard lighting control and sleep

[m1m1k4tz]

It would be nice if you could set the brightness of the lighting in the keyboard like GNOME or KDE. It would also be nice to be able to be able to have the keyboard lighting automatically shut off after a period of inactivity.

[l-const]

It seems Upower has a way to control keyboard backlight so there is a way to implement this feature: https://upower.freedesktop.org/docs/KbdBacklight.html