A white mug on a white background which reads "I ❤️ Unicode" but the ❤️is missing and is represented by a square box, because the client has failed to load the right characterset. It's a joke. It's funny. If you were smart you'd be laughing right now
https://files.mastodon.social/media_attachments/files/006/351/814/original/e40023e86c4d58c3.jpg