Theme Pack Schema
A versioned manifest and documented tokens for palette, focal point, assets, compatibility, and licensing.
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Open source foundation
Open source Codex themes.
Inspect the pack.
The format, themes, validators, creator Skill, and local installation path are open for inspection and contribution. The hosted site is a free community Registry.
What is open
The compatibility layer belongs in daylight.
Advanced image themes depend on a local compatibility layer outside Codex's native color settings. Open implementation and restoration tools make that boundary visible.
Validator and pack tools
Checks that themes are complete, safe to distribute, and clear about platform and delivery paths.
Local installers
macOS and Windows helpers designed around local state, explicit changes, and complete restoration.
Seventeen free themes
Original templates with redistributable assets, illustrative layout previews, compatibility notes, and attribution records.
Creator Skill
An optional Codex Skill for advanced creators who want to generate, inspect, and validate theme packs from source assets.
Compatibility tests
Regression checks for manifests, packages, installer safety, and the Codex versions the visual layer supports.
Repository map
Built for contribution.
The theme standard, CLI, safety runtime, website UI, and validated community Registry live together. Production secrets, resource IDs, and publisher data stay outside Git.
get-codex-theme/
├── apps/website/ gallery, publisher UI, validation APIs
├── packages/ schema, CLI, preview, installer core
├── platforms/ macOS and Windows adapters
├── themes/free/ original redistributable themes
├── plugins/ Codex plugin and creator/manager Skills
├── docs/ spec, security, compatibility
└── tests/ validation and regression coverageReference map
One source for each appearance layer.
Use the native settings reference for Codex Desktop controls, the CLI reference for terminal themes, the Get Codex Theme guide for the boundary between them, and GitHub for the inspectable implementation.
Codex Appearance settings guide ↗
Native desktop themes, colors, UI and code fonts, sharing, and visual-pack boundaries.
Official Codex app settings ↗
The current official reference for built-in desktop Appearance controls.
Official Codex CLI customization ↗
The current official reference for /theme and custom .tmTheme files.
Public source repository ↗
Theme schema, CLI, free packs, safety runtime, tests, and restoration tooling.
For theme creators
Use the Skill.
The optional create-codex-theme Skill helps turn artwork into a validated pack. It is not required to browse, download, or install a theme.
Explore the Skill →For maintainers
Test the boundary.
Contributions should preserve signed application packages, bind visual services to loopback only, describe every local change, and include a complete restoration path.
Read contribution guidance →