__all__ = [ 'background_handler',  'fog_msg', 'map_msg',
            'background_msg', 'map_prop_dialog', 'background', 'map',
            'base_handler', 'map_version', 'base_msg', 'min_dialogs',
            'base', 'miniatures_handler', 'grid_handler',
            'miniatures_msg', 'grid_msg', 'miniatures', 'grid',
            'whiteboard_handler', 'images', 'whiteboard_msg',
            'whiteboard', 'map_handler' ]