(adjust-hsl .(height-normal ..(vfrac ...(square ....(max-component .....(checker ......(min-component .......(square ........(checker [-2.0895 2.7628 -0.2099 1.7934] pos))) pos))))) .(vsqrt ..(length ...(vfloor ....(max-component [-0.5947 -2.8895 -1.3741 2.2255])))))