I think I have just the one but some of my noids look kinda like that so have been wondering.
If you look at the database pictures you will see they seem to be quite a range of coloration and kinda look alike
depending on which photo you look at. The Nouveau came with a label from SMG so am pretty sure it is what it is
I was updating my plant lists and noticed I had the Nouveau and had a want for the Pastel. There in I became confused
Edited to add a bit of explanation