Google had announced earlier that Android O will replacing the classic blob emoji in favour of circular emojis. On the occasion of World Emoji Day, the company has officially announced ditching the blob emoji and it will now be available in the form of a sticker pack for its messaging app Allo.
Google mentioned in a detailed Medium post earlier in May,
Yep, we did it. We said goodbye to the blobs. We moved away from the asymmetric and slightly dimensional shape of the container to an easily scannable squishy circle, relying on bold color, purposeful asymmetry