AlwaysOnTop - bakkeby/dusk GitHub Wiki
AlwaysOnTop is a flag that indicates that the client window is intended to always display on top
(even above other floating windows).
This flag may also be set if a _NET_WM_STATE_STAYS_ON_TOP client message is received for the
window.
As per the default configuration the following window types are by default always on top:
- dialog
 - utility
 - toolbar
 - splash