window rules attribute flags

hidden - Is hidden and doesn’t occupy any tiling space.
sticky - Stays in the focused desktop of its monitor.
private - Tries to keep the same tiling position/size.
locked - Ignores the node --close message.
marked - Is marked (useful for deferred actions). A marked node becomes unmarked after being sent on a preselected node.
center - Center window if state=floating.
follow - Change to monitor/desktop of window.
manage - Window is managed. An unmanaged window is not part of the tree.
focus - Focus the window.
border - Visibility of the window border.