ChatGPT Desktop for Mac · Codex mode · native first
How to change the ChatGPT Desktop theme on Mac (including Codex mode)
Use native Appearance for basic colors and fonts, then choose a ready CC Theme package for a custom image or video background, semantic readability and a documented restore path.
Reviewed
Use native Appearance for the basics
The host app already owns ordinary colors, typography and product behavior. Keeping that layer native is the most stable way to personalize everyday reading.
- Choose the built-in light or dark appearance
- Set supported foreground, background and font choices
- Check chat, code block and diff readability before adding artwork
Use a ready package for image or video backgrounds
CC Theme distributes already-made, versioned .cctheme packages. They do not require a reference-image prompt, repeated generation or additional AI generation tokens.
- Download a published package and verify SHA-256
- Import and validate it in CC Theme
- Apply only through mac-codex on an exact verified client
Treat updates as a new compatibility event
A newer ChatGPT Desktop build is not automatically compatible. Pause the Adapter and return to native appearance until that exact build is verified.
- Current evidence: 26.715.31925
- EVA CodeX visual verification has not passed
- macOS 13.5+ and Apple Silicon only
ChatGPT Desktop theme questions
Is Codex a separate supported desktop client?
The current target is ChatGPT Desktop for Mac, including Codex mode. The historical Adapter ID remains mac-codex, and older Codex search terms are retained only as migration language.
Can ChatGPT Desktop use a custom image or video background?
CC Theme provides published packages with prepared image or muted video backgrounds for the verified Adapter path. Native Appearance still owns basic colors and fonts.
Does CC Theme redesign the ChatGPT interface?
No. It changes an allowlisted visual layer and does not promise to replace the client layout, controls or behavior.
How do I apply a theme?
Download CC Theme and a versioned .cctheme package, import and validate the package, select a verified detected ChatGPT Desktop client, then choose Apply.