finico bd6dadaa0b languages: Change syntax highlighting for JSX elements (#49881)
Syntax highlighting and its customization are very important to many
developers, including me. I've looked through a number of issues and
discussions on this topic and haven't found any active PRs. Currently,
there's no way to customize highlighting for custom JSX tags, as they
use `@type`. Since TSX has a particularly complex syntax and can often
contain types/aliases/generics/tags in a dense sequence, they all blends
into a single color and makes it difficult to "parse" by eyes.

To avoid proposing something arbitrary, I looked into how this is done
elsewhere.

- VS Code `support.class.component.tsx`
[TypeScriptReact.tmLanguage.json](https://github.com/microsoft/vscode/blob/724656efa2c26ab6e7eb2023426dcf2658dc3203/extensions/typescript-basics/syntaxes/TypeScriptReact.tmLanguage.json#L5802)

But it relies on both legacy [tmLanguage naming
conventions](https://macromates.com/manual/en/language_grammars#:~:text=rarely%20be%20used\).-,support,-%E2%80%94%20things%20provided%20by)
and the outdated assumption that React components are always classes.

- ReScript `@tag`
[rescript-zed](https://github.com/rescript-lang/rescript-zed/blob/b3930c1754ab2762938244546ea2c7fb97d01cb3/languages/rescript/highlights.scm#L277)

It's not entirely correct to just use a `@tag` - it's better to
distinguish JSX Intrinsic Elements from custom ones.

- Vue `@tag @tag.component.type.constructor`
[zed-extensions/vue](https://github.com/zed-extensions/vue/blob/2697588c5cde11375d47f53f9449af8e32600d81/languages/vue/highlights.scm#L9C21-L9C52)

- Svelte `@tag @tag.component.type.constructor`
[zed-extensions/svelte](https://github.com/zed-extensions/svelte/blob/ae381a1217d14c26cbedfaf84b0a2f5ae508f40c/languages/svelte/highlights.scm#L46C21-L46C52)

The similarity between Vue and Svelte implementations (perhaps one
borrowed from the other) didn't seem coincidental and the approach felt
appropriate.

**I decided to adopt the same one to maintain consistency for theme
creators.**

So, how it looks:

**Release (0.224.9) version**
<img width="440" height="220" alt="zed-one-release"
src="https://github.com/user-attachments/assets/6f8726c5-a17e-4387-941c-69e5c1569049"
/>

**Local version with changes** - no breaking changes for builtin themes
- uses `type` color as before and can be changed in themes separately if
needed
<img width="440" height="220" alt="zed-one-local"
src="https://github.com/user-attachments/assets/a11cc5ed-20fc-45d2-8ebd-a908503999c3"
/>

**Local version with changes and theme overrides**
<img width="440" height="220" alt="zed-one-with-overrides"
src="https://github.com/user-attachments/assets/1997bd5b-7fa4-4346-8338-b5d61e9e832b"
/>

With these changes in the config:

```jsonc
"theme_overrides": {
  "One Light": {
    "syntax": {
      // "tag.component" also matches
      "type.component": {
        "color": "#d3604fff",
      },
    },
  },
},
```

I'm pretty sure this will help many developers enjoy Zed even more.

Release Notes:

- Improved syntax highlighting for custom jsx elements in TSX and
JavaScript languages. Theme authors and users can now highlight these in
their theme/theme overrides using `tag.component.jsx`
2026-04-02 16:26:08 +00:00
2026-01-22 23:57:26 +05:30
WIP
2023-12-14 09:25:14 -07:00
2024-09-30 17:46:21 -04:00
2026-02-03 20:31:02 -07:00
2025-02-04 09:02:59 -05:00
2025-02-04 09:02:59 -05:00
2026-01-06 12:49:51 -08:00
2025-10-27 13:27:59 -04:00
2025-10-17 18:58:14 +00:00
2026-03-17 16:34:35 +00:00

Zed

Zed CI

Welcome to Zed, a high-performance, multiplayer code editor from the creators of Atom and Tree-sitter.


Installation

On macOS, Linux, and Windows you can download Zed directly or install Zed via your local package manager (macOS/Linux/Windows).

Other platforms are not yet available:

Developing Zed

Contributing

See CONTRIBUTING.md for ways you can contribute to Zed.

Also... we're hiring! Check out our jobs page for open roles.

Licensing

License information for third party dependencies must be correctly provided for CI to pass.

We use cargo-about to automatically comply with open source licenses. If CI is failing, check the following:

  • Is it showing a no license specified error for a crate you've created? If so, add publish = false under [package] in your crate's Cargo.toml.
  • Is the error failed to satisfy license requirements for a dependency? If so, first determine what license the project has and whether this system is sufficient to comply with this license's requirements. If you're unsure, ask a lawyer. Once you've verified that this system is acceptable add the license's SPDX identifier to the accepted array in script/licenses/zed-licenses.toml.
  • Is cargo-about unable to find the license for a dependency? If so, add a clarification field at the end of script/licenses/zed-licenses.toml, as specified in the cargo-about book.

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Zed is developed by Zed Industries, Inc., a for-profit company.

If you’d like to financially support the project, you can do so via GitHub Sponsors. Sponsorships go directly to Zed Industries and are used as general company revenue. There are no perks or entitlements associated with sponsorship.

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