Help Me Identify This Dress Please

Can someone tell me what dress this is? I assume it's a set for the morphing fantasy dress, but I can't find it. btw, I hope that soon the store will have the feature where you can click on an item and see what all add-ons are available for it. That's very helpful to have and has also got me to buy things in the past because I don't always know there are extra add-ons to a favorite set.