Discovery of highlight scopes for themes

[blueberrycarrot]

Trying to figure out what theme scopes affect what parts of Nushell grammar. I found this: https://github.com/helix-editor/helix/blob/25.07.1/runtime/queries/nu/highlights.scm#L211 and assumed @punctuation.delimiter means this is the config key I have to use in .config/helix/themes/. But setting "punctuation.delimiter" to a color doesn't change any -- in the editor buffer.

What's an easy way to map grammar to theme scopes then?

Thanks.

[webdev23]

It's not easy to sort out, but if interested Helix scm are just tree-sitter config and it's well documented.

https://tree-sitter.github.io/tree-sitter/3-syntax-highlighting.html

[the-mikedavis]

The capture names like punctuation.delimiter match up with theme scopes. That you can't target -- might just be a bug in the Nu queries, probably a regression from #9436. The line lower in that query which also matches on the param_long_flag node might be taking precedence over the -- capture.