This is something new is the Treehouse as Digital Stamps so it is new to me.
This set is called Friends & Lattes you get 6 images. The sketch is SCS SC262
It also works for these Challenges
Cute Cards Something new Challenge #94
ABC L- is for Layering
Ann's Creative Nook Something brand new GCA#72
Dotties World Bring out the old and bring in the new