(sigmoid .(adjust-hue pos ..(y ...(adjust-hsl ....(x .....(v* ......(average .......(rgb-from-hsl [-1.2918 2.5999]) .......(vcos ........(alpha [2.2292 -2.8659]))) pos)) ....(vcos .....(vpow ......(vmax .......(vsin ........(hue-from-rgb [-2.8693 -0.1109 -2.1663 -0.589])) .......(red-from-hsl ........(v* pos [-2.183 0.8111]))) ......(height [-2.8957 0.0566])))))))