Comment 5 for bug 1404637

As far as a "pastel" version, I agree that the current version can be pretty harsh. One way to do reduce that would be to lower the saturation of all the three colors -- mix in some of all three channels so it can never be fully red or green or blue. I think that will take some of the garishness away. (If you are defining colors via HSL that would be even easier, but my guess is not)