Just for laughs and giggles, here is a side by side I created from "straight from the egg" pics of one of my 4 Super Pastels and the odd looking Super Pastel.

I only used one of the Super Pastels, because all 4 look basically the same, aside from varying patterns. Coloration almost identical.

As they shed and grew, the difference in color stayed the same. I don't have any of the Super Pastels anymore (well, I have a 4 day old one) to make good side by sides, but the one in the picture of the first page works