Having appeared in various shapes and sizes since Android 4.4; the amorphous blob that defined Google’s emoji appearance since 2013 is being retired. […]

The „blob“ character seen in previous versions of Android has been a divisive character; morphing over time from an alien, into a consistent gumdrop shape.

In Android O, the gumdrop is gone: replaced with round smiley shape, consistent with all other operating systems.

blog.emojipedia.org

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