(checker .(height ..(lightness-from-rgb ...(max-component ....(vcos .....(green-from-hsl ......(lightness-from-rgb .......(y ........(x pos)))))))) .(vmin ..(y ...(gradient ....(length .....(hue-from-rgb ......(alpha plasma))))) ..(radius ...(vcos ....(square [2.175 -0.4215])))))