Yeah, that’s a boolean flag on the badges. For example: Discourse Meta Upper-right.
Here’s a quick diagram of what is happening with the trust level badges.
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V
Privilege <- manual
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V
Database Condition -> Badge <- manual
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V
Title <- manual
I could manually grant the “Elder” badge, or manually set your title to “Elder”, but neither of those are going to give you the ability to close a topic, while TL4 would.
What you want is user ACLs.