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Missing syntax highlighting on hpp files #9387

@mark-99

Description

@mark-99

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Describe the bug

Opening .cpp or .h files shows up with coloured syntax highlighting, but .hpp files are plain white. There is a C++ icon in the tab so it's recognised, but highlighting doesn't work. Renaming the file to .h makes the highlighting show up.

To reproduce

Open .hpp file.

Expected behavior

No response

Screenshots, videos, and logs

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Operating system (OS)

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Operating system and version

Debian 12

Shell Version

bash

Current Warp version

v0.2026.04.27.15.32.stable_02

Regression

No, this bug or issue has existed throughout my experience using Warp

Recent working Warp date

No response

Additional context

No response

Does this block you from using Warp daily?

No

Is this an issue only in Warp?

Yes, I confirmed that this only happens in Warp, not other terminals.

Warp Internal (ignore): linear-label:b9d78064-c89e-4973-b153-5178a31ee54e

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    area:editor-notebooksEditors, notebooks, markdown rendering, LSP, and code display.bugSomething isn't working.ready-to-implementThe issue is ready for implementation work.repro:highThe report includes enough evidence that the issue appears highly reproducible.triagedIssue has received an initial automated triage pass.

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