The other day I was driving, listening to a Playlist, and the now playing screen was radically different, it had full screen album art, with the controls on top, but would disappear, it was a beautiful UI, and then it was gone when I changed playlists..... I'm not lying, I dont use any other apps so I'm not confusing it with another app. I wish I had a screenshot.

Does anyone know what that was? Maybe it's a setting I turned off but darn now I want it back.

Edit: I found the following, but it's 6 months old. It shows what I had briefly.
http://www.androidpolice.com/2017/01/08/spotify-testing-redesigned-now-playing-screen-full-screen-al...

Anyone have any info on this being an update?