Green flag and Turbo mode. Press 1 / 2 / 3 / 4 to see deformations of four wheel curves. Press b to change the background: black / squares with side length 120
"A deformation is a tiling in which the tiles slowly change while keeping the same underlying pattern." Here the pattern is a wheel curve (three wheels). The sum of the radii is 60 and all phases are 0. The only difference between curves in adjacent tiles is that one of the three radii is increased by 2 and another decreased by 2.
