[Feature Request] Outlined badges

[lonix1]

Prerequisites

• I have searched for duplicate or closed feature requests
• I have read the contributing guidelines

Proposal

Outlined badges were requested before, but the timing wasn't right (@mdo stated there were issues back then, but it could be reconsidered for v6).

• New variant of Badge - Outline mode #37928
• Feature Request: Badge/Pill Outline #27110
• New feature: outline badges #23886
• Feature request: Badge outlines #23882

Motivation and context

Outlined badges are very useful now that we have light/dark modes.

Could this be reconsidered, or put on the long-term backlog?