def __init__ (self):
EventManager.__init__ (self)
RenderLayer.__init__ (self)
self._title = None
self._screen = None
self._background = None
self._color = (255, 255, 255)
# Timer value for the event system. 40 frames per second should
# be enough as default.
self._timer = 40
# Internal widget(!) list for fast access to the widgets.
self._index = []
self.esc = 0
