Platonic and Archimedean Solids

Select with the sliders in the upper left corner the Platonic Solid (1: Tetrahedron, 2: Hexahedron, 3: Octahedron, 4: Icosahedron, 5: Dodecahedron, 6: Trunc. Icosahedron, 7: Cuboctahedron), the size, the greyscale of the background (back) and the speed of 3D-rotation.