Vinh TranandMrSubidubi e033829ef2 Fix diff highlights (#38384)
Per
https://github.com/zed-industries/zed/discussions/23371#discussioncomment-13533635,
the issue is not new and I don't know how to solve the problem more
holistically yet.

All of the native themes don't have spec for `@diff.plus` and
`@diff.minus` leaving addition and deletion not being highlighted. For
diff file, the most valuable highlighting comes from exactly what we're
missing. Hence, I think this is worth fixing.

Perhaps, the ideal fix would be standardizing and documenting captures
such as `@diff.plus` and `@diff.minus` on
https://zed.dev/docs/extensions/languages#syntax-highlighting for theme
writers to adopt. But the existing list of captures seems to be
language-agnostic so I'm not sure if that's the best way forward.

Per
https://github.com/the-mikedavis/tree-sitter-diff/pull/18#issuecomment-2569785346,
`tree-sitter-diff`'s author prefers using `@keyword` and `@string` so
that `tree-sitter highlight` can work out of the box. So it seems to be
an ok choice for Zed.

Another approach is just adding `@diff.plus` and `@diff.minus` to the
native themes. Let me know if I should pursue this instead.

Before
<img width="668" height="328" alt="Screenshot 2025-09-18 at 11 16 14 AM"
src="https://github.com/user-attachments/assets/d9a5b3b5-b9ef-4e74-883f-831630fb431e"
/>

After
<img width="1011" height="404" alt="Screenshot 2025-09-18 at 12 11
15 PM"
src="https://github.com/user-attachments/assets/9cf453c0-30df-4d17-99e9-f2297865f12a"
/>
<img width="915" height="448" alt="Screenshot 2025-09-18 at 12 12 14 PM"
src="https://github.com/user-attachments/assets/9e7438a6-9009-4136-b841-1f8e1356bc9b"
/>



Closes https://github.com/zed-industries/extensions/issues/490


Release Notes:
- Fixed highlighting for addition and deletion for diff language

---------

Co-authored-by: MrSubidubi <finn@zed.dev>
2025-11-20 15:52:15 +01:00
2025-10-21 09:58:26 +02:00
2025-10-17 18:49:11 +02:00
2025-11-20 15:52:15 +01:00
2025-09-23 16:49:45 +00:00
2025-11-19 20:28:40 +00:00
2025-05-17 12:34:42 +00:00
2025-09-16 21:58:40 +00:00
2025-10-27 13:27:59 -04:00
WIP
2023-12-14 09:25:14 -07:00
2025-03-10 01:06:11 -07:00
2025-11-12 20:27:04 +00:00
2024-09-30 17:46:21 -04:00
2025-11-12 20:27:04 +00:00
2025-02-04 09:02:59 -05:00
2025-02-04 09:02:59 -05:00
2025-10-27 13:27:59 -04:00
2025-11-10 22:05:46 +00:00
2025-10-17 18:58:14 +00:00
2025-03-10 01:06:11 -07:00

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