wm(3tk) on Linux
The text 2d506172d412, as Debian 9 (Stretch), Debian 8 (Jessie) shipped it.
Communicate with window manager
Flags it lists
-
-alpha -
-disabled -
-fullscreen -
-modified -
-notify -
-titlepath -
-toolwindow -
-topmost -
-transparent -
-transparentcolor -
-zoomed