1let 2 n = 5; 3in 4union [ 5 for (i in 0..<n) 6 regular_polygon (i+3) >> move[0,3] >> rotate(tau/n*i) 7 >> colour (sRGB.hue(i/n)), 8 polygon ([for (a in 0..<tau by tau/5) cis(a+tau/4)*2].[[0,2,4,1,3]]) 9 >> colour black 10] 11