(vmax .(green-from-hsl ..(sigmoid blotches)) .(checker ..(vpow 2.4724 ...(vmin ....(vdivide [1.5337 -2.6559 -0.8274] .....(vmod [1.5442 0.2417 2.599 2.1868] ......(adjust-hue .......(max-component ........(hsl-from-rgb pos)) .......(vabs 0.1579)))) -0.2962)) -1.7399))