Indicate font attributes in braille with tags #16863
Description
Is your feature request related to a problem? Please describe.
Braille users are currently limited in terms of the type of formatting attributes they can read in Braille: only bold, italics and underline are supported, and only if their chosen braille table supports the LibLouis emphasis codes for those attributes.
Describe the solution you'd like
Use start and end tags for formatting attributes (to begin with, just bold, italics, underline and strikethrough, to align with the work in #16748).
Describe alternatives you've considered
Using a change marker, that simply notifies the user that some font attributes have changed (IE bold was turned on or off). Underlining formatted text with dots 7 and/or 8. Having reserved "status" cells on the display that show information including (but not necessarily limited to) formatting.
Additional context
See also: