O artigo gerenciador de janelas de re-criação de filhos na Wikipedia implica strongmente que openbox é um wm reparador:
Virtually all modern window managers are re-parenting, although earlier window managers, such as the uwm window manager, were not. Exceptions to that rule are awesome, dwm, PLWM, ratpoison and xmonad, due to a lack of any typical window decorations used by these window managers, and also Compiz which drew the decorations separately up until version 0.9.0, where it became a re-parenting window manager to allow it to run in a non-composited mode.