Add ALT tag descriptions for images centrally
For people that are visually impaired, ALT tags for images can be an important source of information and improve accessibility. Presently, all content types that want to support ALT tags would have to add their own text field in semantics.org. I think it would be a good idea if the option for adding such a description was offered directly when uploading an image, simply adding some meta information to an image just like it's already done with copyright information.
The corresponding use case might read like this: "As a content creator I want to add ALT tag information when uploading an image in order to provide information that can be used to improve the accessibility of content types."
It's probably not complicated, and I might add this feature myself, but it'd probably take me much more time than someone who knows where to tweak the code and who's more experienced in UX design -- or let's discuss the latter topic here! What would be a good way to add the ALT tag information when uploading a video?