USWDS - Feature: Add outline to buttons in forced-colors mode #5099

Is your feature request related to a problem? Please describe.

Buttons in forced-colors mode lack a border or different background color which would add context as well as clarify how large the button target is.

Describe the solution you'd like

Adding outline: 2px solid transparent would add a border to buttons and would be consistent with existing forced-colors styles

Describe alternatives you've considered

There is a ButtonFace system color which is intended to contrast between the face of the button and the ButtonText. In default forced-colors light and dark themes, this color is the same as the default background color and therefore blends into the background with no visible change.

Additional context

Screenshot of proposed solution

Code of Conduct

• I agree to follow this project's Code of Conduct.
• I checked the current issues for duplicate feature requests.