polygon(points = [[0, 0], [1, 0], [0.8, 0.5], [1, 1], [0, 1]], paths = undef, convexity = 1); multmatrix([[1, 0, 0, -2], [0, 1, 0, 0], [0, 0, 1, 0], [0, 0, 0, 1 ...