Feature Idea: Find/Extract Text Attributes for Accessibility

[carlos-zamora]

Description of the new feature/enhancement

ITextRangeProviders can have support for a FindAttribute() function (link). They support a ton of different text attributes.

We definitely can support background/foreground color. This might be a good opportunity to enhance our accessibility as a terminal. But we need to do some research as to how automation clients (i.e.: narrator) make use of this.

This would also expand as we support more text attributes in the future.

Proposed technical implementation details (optional)

This would go in the shared code for UIATextRange and would require some changes to propagate to XamlUiaTextRange in Windows Terminal.

[codeofdusk]

Could this be prioritized for 21H1? NVDA definitely can get colours from UIA.

[DHowett-MSFT]

I'm averse to scoping additional things into 21H1 while the team is heads-down on Terminal v1. 😄 Sorry.

[codeofdusk]

With the additional three months, could this issue be reconsidered for 21H1 (just exposing colours, not necessarily #3567)? Thanks!