A Twitter test will remind you to add alt text to images

In the midst of absolutely no internal chaos whatsoever, Twitter’s accessibility team launched a much-requested feature test. Ten percent of users, who make up the test group, will be served reminders to add image descriptions to their photo uploads.
Image descriptions, or alt text, are exactly what they sound like: descriptions of what appears in an image. Sometimes these descriptions appear when the image doesn’t load, but more importantly, they offer context for people using screen readers, who might be blind or low-vision. Alt text helps make sure that everyone can be included

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