Self-Review Checklist: - [x] I've reviewed my own diff for quality, security, and reliability - [x] Unsafe blocks (if any) have justifying comments - [x] The content is consistent with the [UI/UX checklist](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist) - [x] Tests cover the new/changed behavior - [x] Performance impact has been considered and is acceptable Closes #52882, should help #52723 According to the [Zed documentation](https://zed.dev/docs/semantic-tokens#example-disabling-a-token-type), users should be able to disable semantic highlighting for a specific token type by adding an empty rule in `settings.json`. However, the current implementation fails to respect this because its merging logic allows lower-priority default styles to "leak through" even when a matching high-priority rule is empty. This makes it impossible to selectively disable semantic tokens to reveal the underlying Tree-sitter highlighting when using "semantic_tokens": "combined". This is particularly problematic for extensions that provide specialized Tree-sitter queries which are currently being obscured by less desirable semantic tokens(#52723). This PR fixes the logic to ensure that a completely empty high-priority rule acts as an opaque override, correctly disabling semantic styling for that token type and allowing Tree-sitter highlighting to show through as intended. Release Notes: - Fixed a bug where semantic token highlighting could not be disabled via empty rules in `settings.json`.
Zed
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:
- Web (tracking issue)
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 specifiederror for a crate you've created? If so, addpublish = falseunder[package]in your crate's Cargo.toml. - Is the error
failed to satisfy license requirementsfor 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 theacceptedarray inscript/licenses/zed-licenses.toml. - Is
cargo-aboutunable to find the license for a dependency? If so, add a clarification field at the end ofscript/licenses/zed-licenses.toml, as specified in the cargo-about book.
Sponsorship
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.