Ask HN: Emoji Kitchen by Google, terms of use?

I recently came across the Emoji Kitchen project from Google which seems to be available officially from Android devices keyboards.

I cannot find any information regarding the generated "mix" emojis (PNGs apparently).

* Is there an official repository / API? I couldn't find one

* Under which license are the images?

* Are other formats available?

https://emojipedia.org/emoji-kitchen

https://emoji.supply/kitchen/

Happy to have some more details if you find any!