(v+ 
.(vmax vnoise 
..(average 
...(rgb-from-hsl [-1.7246 -0.9543]) 
...(vsin 
....(hsl-from-rgb 
.....(vround 
......(gradient 
.......(square 0.6659))))) 
...(radius 
....(min-component 
.....(min-component 
......(height 
.......(y 
........(alpha pos)))))))) 
.(blue-from-hsl 
..(z 
...(vmax 
....(t 
.....(green-from-hsl 
......(polar pos))) 
....(vpow 
.....(checker 
......(t 
.......(vcos pos)) 
......(rgb-from-hsl velvet)) [1.2314 1.5906 0.8953])))))