In mastodon after uploading an image you can click edit and add a text description to help persons with eyesight problem find out what the image is.

This is an excellent accessibility feature.

On 31/12/2020, I reported an issue with this feature. This is currently under investigation.

On a related note, there is a really nice promotional video for Mastodon.

My Mastodon sign up blog post is here

#mastodon,#accessibility,#picture,#description.

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