(offset [2.6874568911194254 -0.622670298103297] 
.(scale 0.26433639079750065 
..(vcos 
...(red-from-hsl 
....(adjust-hsl 
.....(length 
......(alpha 
.......(vsqrt 
........(dot [-1.1139 0.3231] [0.7539 2.2466])))) 
.....(v+ 
......(length 
.......(checker 
........(sigmoid 
.........(vmax [-1.113 -2.5014] grain)) 
........(vfrac 
.........(min-component pos)))) pos))))))