Codex Theme Studio

Turn a visual direction, brand system, or supplied image into a reversible Codex Desktop theme through loopback-only Chrome DevTools injection.

Modes

• Design: prepare a portable theme directory and validate it without installing or restarting Codex.
• Apply: run the safety preflight, install the runtime, and import or create a theme. Obtain explicit authorization before restarting a running Codex app.
• Verify or repair: reproduce the affected route, run deterministic tests, Doctor, and live Verify, then repair only selector or layout failures supported by evidence.
• Pause or restore: Pause removes the active styling. Restore also stops the managed CDP session and returns Codex to the official appearance.

Workflow