I know that title bar of windows can be removed in {g,d}conf-editor or by modifying the metacity theme. However, I want to have some rather complex rules for showing title bars or not (like hide the title bar if the window is tiled) and an extension is the only way I can think of to do this. MetaWindow.get_frame doesn't seem to be accessible in js, is there a way to control the decoration of windows in a gnome-shell extension?
THX.