(vfrac .(adjust-hsl ..(hsl-from-rgb pos) ..(v* ...(v* pos ....(lightness-from-rgb .....(vmod ......(height .......(v- ........(gradient .........(height blotches)) [-1.5382 -1.4015 -1.3619])) ......(y .......(cross3 [-0.4693 1.3087 -1.0194 -2.859] plasma))))) ...(dot ....(radius .....(vfrac ......(radius .......(square ........(alpha [0.8973 -2.5819 -2.2474]))))) pos))))