(checker .(adjust-hue ..(blue-from-hsl ...(v+ ....(offset [-2.3789 -1.7772 0.2626 2.8484] .....(height ......(hsl-from-rgb .......(height-normal ........(vsin grain))))) ....(rgb-from-hsl .....(sigmoid plasma)))) ..(green-from-hsl ...(green-from-hsl [-1.4873 1.3099 2.6901]))) .(polar ..(length [-2.4939 -0.3618 -0.132 -1.3226])))