List of object symbols, none of which may be present in the cell to grant access. If the value is None (default), there is no blacklist check.
List of object symbols of which at least one must be present in a cell to grant access. If the value is None (default), there is no whitelist check.
If the renderer has a fixed size and a level is smaller, then this setting indicates whether the level should be centered or drawn in the upper left corner.
Indicates whether a player is allowed to jump.
Indicates whether a player is allowed to move.
The prefered size of the playing field. A program that renders the surface will always try to keep this size. If no size is specified, then the client will specify a size.