Hi,

One of my favorite sticker pack for iMessage (available for other platforms too) is Milk & Mocha bears.
Now Proton you have just a very cute cat and you did already put a lot of effort in the design and animation.
I would gladly use Lumo stickers if you can deliver something as nice :-)
It will also make a good advertising for the product itself: Lumo.

Thanks for reading / voting.
Cheers
M