I would love an open image format that has alt text baked into the file format and can be read by other apps.

I'd love to see writing alt text done closer to the source, with an ability to customize the existing description for more specific descriptions by other people using the image.

#Accessibility

@slimepsychic there’s very strong use of EXIF / IPTC metadata in press and commercial photography to ensure correct captioning gets carried through, copyright notices, version / document management and also just for ease of management of archives and libraries. No reason similar couldn’t be much more widespread.
Would help ppl organise their photo libraries too and it’s important to be aware of what metadata is stored too - smartphones and some cameras embed a lot of GPS info!