Keyboard shortcuts

Would be awesome, if you could add two configurable keyboard shortcuts for adjusting the brightness. Ideally, they should work layout agnostic, i.e. the same keyboard shortcut should work with different languages. Alternatively, a shortcut could be assigned to 2 different keyboard combinations, f.i. one for an English and the other for a German keyboard layout.

It would also help to have a configurable “sensitivity” when triggering a keyboard shortcut, to adjust the brightness change (in %) when pressing a keyboard shortcut.

An OSD indicator (like Gnome is already showing for a volume change), when using the keyboard shortcuts, would be awesome as well.

Thanks for this great extension, especially my eyes are sending you the best wishes!