That is quite misleading . Maybe gnomeshell has some internal feature to control gamma and the LUT . But it is not yet exposed in any way to plugins or apps , so it is not available . Also , a general problem is , Wayland still does not support it with native APIs . So this will only work with GNOME when implemented ! This is not an acceptable solution . Wayland has a bunch of missing features and according to Wayland developers , this is often by design . So every DE must implement these on their own and no standard APIs have been defined . It will be a horrible clusterfuck until Wayland developers change their mind . <| sep |> I don ' t think Rondo would bring the presence they ' re looking for <| sep |> It is crucial can ' t you see that ! ? OP