Pastel vs Lemon Pastel...differences?

I am looking for a lemon pastel. At a local exotic reptile store they have a few baby bps labeled "pastel" and they are noticeably yellow. I have not seen a lemon pastel in person...are there noticeable differences in the coloring of these morphs? Or could I have looked at true lemons and they just don't know how to lable them?

A Lemon pastel is just the name of NERD's pastel line.

Got it, i also noticed there was a recent post about this same question anyway. Sorry!