Since the app has been renamed, all stickers are now called Playmoji. Also, in addition to the already existing stickers, Google launched four new packs called Pets, Signs, Sports, and Weather. The Playground app is available as a new Pixel camera mode, and it's only compatible with the Pixel 3 and Pixel 3 XL phones.
Playground works with the Pixel 3's rear camera, but you can also use it in selfie mode. The app also offers real-time suggestions to recommend content based on the scene, if you're not sure what Playmoji to use.
According to Google, the Playground app will be available to Pixel and Pixel 2 users as well, although there's no timeline available at the moment.
source: Google
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