(vabs 
.(average 
..(adjust-hue [1.7736 -1.1939 -2.3817] 
...(saturation-from-rgb 
....(offset 
.....(hsl-from-rgb 
......(checker 
.......(alpha [1.488 -1.8758]) [-1.3065 1.552 -1.2211 2.8474])) 
.....(lightness-from-rgb noise)))) 
..(vpow 
...(square 
....(x 
.....(rotate 
......(vsqrt 
.......(vfloor 
........(vfrac [2.2017 -2.3767]))) 
......(square 
.......(z 
........(min-component [0.7922 2.8566 -2.3247 0.8055])))))) 
...(radius 
....(vfrac 
.....(x noise))))))