(saturation-from-rgb 
.(height-normal 
..(x 
...(vpow 
....(vabs 
.....(red-from-hsl 
......(lightness-from-rgb 
.......(height-normal pos)))) 
....(v+ 
.....(saturation-from-rgb 
......(height [0.0699 2.6991])) 
.....(v- 
......(gradient 
.......(dot 
........(y [2.6563 0.2765]) 
........(length snoise))) 
......(scale -0.5098 
.......(t 
........(hsl-from-rgb [-2.3866 -2.7955 -2.0174 -2.3188])))))))))