overlay notebook semantics onto the screen reader with aria-roledescription

[tonyfast]

we use the following generic aria roles region and group to describe cells, inputs and outputs. we actually overlay notebook semantics onto the screen reader with aria-roledescription. when this feature is added, it should be easy to toggle on/off. screen reader power users might prefer familiar screen reader cues while renamed descriptions are more conversational.

[tonyfast]

marking up notebooks semantic might be a plausible uses case:

If you have a very specific audience, that is homogeneous in language, in skill, in experience, and in technology, and that audience has struggled with a specific concept or control, then sure, maybe experiment.

There is some guidance: no blank values, only use it on things that already have implicit or explicit roles, and use it only to clarify a thing.

https://adrianroselli.com/2020/04/avoid-aria-roledescription.html