ChatGPT Desktop for Mac · Codex mode · native first

Change your ChatGPT Desktop theme safely.

Use native Appearance for basic colors and fonts, then install a prepared .cctheme package for an image or video background, readable dark surfaces and a clear restore path.

Reviewed

Use native Appearance for basic colors

The desktop client already owns ordinary color, typography and product behavior. Keeping that layer native is the most stable starting point for everyday reading.

  • Choose the built-in light or dark appearance
  • Set the supported foreground, background and fonts
  • Check chat, code block and diff contrast

Add a prepared image or video background

Published .cctheme packages are finished and versioned. You do not need to recreate a screenshot, tune a prompt repeatedly or spend additional generation tokens.

  • Choose a complete workspace preview
  • Download the published package
  • Compare its SHA-256 checksum

Verify the target before you apply

Import the package into CC Theme and select only a detected client covered by exact compatibility evidence.

  • Current evidence: 26.715.31925
  • macOS 13.5+ on Apple Silicon
  • EVA CodeX visual verification has not passed

Restore the original appearance after an update

A newer client build is a new compatibility event. Pause the Adapter and return to the native state until that exact build is verified.

  • Do not force an older Adapter
  • Record the new client build
  • Apply again only after verification

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.