Wait, did you just tweet a picture of text about accessibility?

Uh oh, it's the irony police 😄 It has alternative text; it's a picture to indicate I'm writing something that's not just a tweet.

What do you mean with alternative text? Is there actually a way to set an “alt” attribute for a picture on Twitter?

Yes! You may need to turn it on in settings. Some third party clients don't support it.

Wow, I didn’t know about that. How do I get Twitter’s own web app to show it?

It's somewhere in settings. A checkbox.

I found the one to activate the editing option, but no way to activate its display. Anyway, apologies for abusing you as Twitter support

What client are you using?