VS Code Expose Codex internal syntax highlighting theme (used in chat panel & Codex app)

What variant of Codex are you using?

App, IDE Extension

What feature would you like to see?

Problem

Codex already uses a consistent syntax highlighting theme for code rendering:

• in the Codex App
• in the VS Code extension (chat panel code blocks)

However, this theme is not available as a selectable/editor theme in VS Code.

Currently, there is no way to:

• apply the same syntax highlighting to the editor
• reuse the Codex theme outside of chat/code blocks
• export or reference this theme

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What I want

I want to use the exact same syntax highlighting theme that Codex uses internally:

• for chat code blocks
• in Codex App

…as my main editor theme in VS Code.

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Expected behavior

One of the following:

1. Expose the Codex theme as a VS Code theme (e.g. "Codex Theme")
2. Add a setting in the extension:

• "codex.useEditorTheme": true

1. Allow exporting the internal theme (JSON / TextMate rules)
2. Document the token color mappings used by Codex

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Why this matters

The Codex theme already exists and is well-designed.

Using a different theme in the editor creates inconsistency:

• chat panel → one syntax style
• editor → another

This breaks visual continuity and developer experience.

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Additional context

This is not a request for a new theme —
the theme already exists inside Codex.

The request is to make it reusable in the editor.

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Workarounds tried

• Manual editor.tokenColorCustomizations
• Using existing themes (One Dark Pro, etc.)

These do not match the Codex theme exactly.

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Suggestion

Expose the internal Codex theme as:

• a built-in VS Code theme
• or a JSON export

This would ensure consistency across:

• Codex App
• VS Code extension (chat)
• VS Code editor

Additional information

_No response_