Nothing
sky.colors = function(n){
nred = floor(n/2)
nblue = ceiling(n/2) - 1
sred = seq(0.25, 1, length.out = nred + 1)[1:nred]
sblue = seq(1, 0.25, length.out = nblue + 1)[1:nblue + 1]
reds = rgb(1, sred, sred^3)
white = rgb(1, 1, 1)
blues = rgb(sblue^3, sblue, 1)
return(rev(c(reds, white, blues)))
}
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