Hi Keith,
Some of your answer will be found here: https://github.com/adaptlearning/documentation/blob/master/04_wiki_assets/adapt_framework/Adapt-Accessibility-OS-Doc.pdf
You'll find links to this PDF on this framework wiki page: https://github.com/adaptlearning/adapt_framework/wiki/Accessibility
Hope this gets you started. I'll leave it to others to address your question more specifically.
- Chuck