Where is the project you sent with your email? See below.

I saw it. It is a planter box put in front of the window but I too admit the title is a bit misleading. I was thinking window treatment,

Hi there, yeah Hometalk does that I don't know why its not possible to just search for the list but it doesn't seem to be :/ Here's the best search term I could come up with that might get you the projects you saw: https://www.hometalk.com/search/posts?filter=window%20coverings

I know one of my own projects got added to one of their forget curtains lists, it was window boxes for plants: https://www.hometalk.com/diy/build/planters/hanging-flower-boxes-in-our-master-29698457

Yes, the email title is misleading but it's still fun to check out all the projects.