Do highlighting for at least the navigation node

[NSoiffer]

NVDA has the ability to highlight the current focus (Visual preference: highlight system focus). Maybe this can be done while navigating. It requires adding ids to the web page, or writing some code that maps the internal ids used for reporting the current node back to the original tree. Then JS can get the bounding box and highlight it. CSS could be used if modifying the document is an option.

[bhavyashah]

Use case: It is fairly common for blind college students to work with sighted visual descriptionists for STEM classes. I often screen-share to point out a particular piece of Math I'm struggling to make sense of, and having visual highlighting would be nice for that. In other words, +1 to this ticket.