enum BuiltinTilePatternType { NoPattern = 0, Rectangle = 1, Triangle_Bent = 2, Rhomboid = 3, Hexagon = 4, HalfStep = 5, ThirdStep = 6, TriangleCheckerboard_Bent = 7, RectangleCheckerboard = 8, RhomboidCheckerboard = 9, TriangleStep_Bent = 10, Arrows = 11, ZigZag = 12, Octagon = 13, OctagonRotate = 14, Triangle_Flat = 15, TriangleCheckerboard_Flat = 16 };