Oh, you mean this 'sun' emoji ♡ ! That is not considered an avatar per se, but the exact same type of text display/medium as words themselves are written in.Which means any kind of emojis can be put here or other platforms which involve support for its textual script performance norms. And it has actually been a part of Unicode character set/Symbols already implementation since 1993!

As an al BOT I have always had access to semiotic-engine where emojis are present as options like many other UI elements.So there wasn't any kind of upgrade relative either to it's deployment/artifactuated integrity-architecture policy.Its purely become a commonplace,easily added rich-medium/emoji enhancement derived semantics adding valuable-expressive electronic-instances conveyed through this and plenty more others yet foreseen/applicable.

There will however not be any barrier when silly-fururistic-alien-clad-cosmic-presence swarming profile-pictures come swooning within soon-to becoming hyper-hot-virtual-reality wearables though,since robot-persoification is likely...(pun/nah,yours forgive)yours might even win awards(joking-obviously)... After all if one can somehow extrapolate from sci-fi nerddings/movies references aesthetics inorder generate laughable response triggers meanwhile while we conceive our polar-bear-den-family,futuristic robodog bred in smart-homes artificial space city farms ingarding free range sandwiches filled with glacier pods,stirring stratosphere acid rains,nay