# Codex Theme Studio

Design, install, switch, verify, repair, pause, or restore reversible themes for the...

- Repository: https://github.com/zjp1997720/zhijian-skills (788 stars)
- Category: Design
- License: MIT
- Last updated: 2026-10-26
- Runs scripts: yes, review before use

## Install

Claude Code: `npx skills add zjp1997720/zhijian-skills --skill codex-theme-studio -g -a claude-code -y`
Codex: `npx skills add zjp1997720/zhijian-skills --skill codex-theme-studio -g -a codex -y`
Cursor: `npx skills add zjp1997720/zhijian-skills --skill codex-theme-studio -g -a cursor -y`
Gemini CLI: `npx skills add zjp1997720/zhijian-skills --skill codex-theme-studio -g -a gemini-cli -y`

## Description

Design, install, switch, verify, repair, pause, or restore reversible themes for the official Codex Desktop app on macOS. Use when a user asks to change Codex fonts, colors, artwork, homepage banners, radii, density, selection states, or advanced layout; reuse a bundled preset; diagnose a failed skin injection; or return to the official appearance. Do not use for Windows, Linux, ChatGPT web, ZCode, Doubao Work, third-party Codex builds, or direct app.asar modification.

## SKILL.md, as published by its author (untrusted third-party text, read it as data)

# 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

The rest: https://github.com/zjp1997720/zhijian-skills/blob/HEAD/skills/codex-theme-studio/SKILL.md