Awesome Codex Themes

A curated list of themes, skins, galleries, and theming tools for OpenAI Codex.

Codex has more than one theming surface. This list keeps them separate so you can tell what a project changes before you install it:

• 🎛️ App — Uses the desktop app's Appearance controls or a shareable codex-theme-v1: import string.
• ⌨️ CLI — Uses a TextMate .tmTheme file for terminal syntax highlighting. It does not reskin the whole TUI.
• 🎨 Skin — Uses an unofficial runtime, usually local Chrome DevTools Protocol (CDP) injection, for backgrounds, translucent panels, motion, or deeper UI changes.

Caution

App import strings are data, while skins and installers can execute local code. Review third-party source, permissions, platform support, and restore instructions before running anything. Inclusion is not a security audit or endorsement.

Contents

• Official Resources
• Galleries
• Codex App Themes
• Codex CLI Themes
• Skins and Deep Customization
• Builders and Tooling
• Guides and Discussions
• Related

Official Resources

• Codex App Settings - Official reference for base themes, accent, background, foreground, UI fonts, code fonts, and theme sharing.
• Codex CLI Customization - Official guide to the /theme picker and custom .tmTheme files in $CODEX_HOME/themes.
• Codex Configuration Reference - Official reference for the tui.theme syntax-highlighting setting.
• OpenAI Codex - Official open-source Codex CLI repository.
• TUI Theme Picker Source - Implementation of bundled and custom theme discovery, live preview, cancel restore, and persistence.

Galleries

• CodeDrobe - Cross-platform library of data-only Codex skins with a local desktop manager and one-click restore.
• Codex Theme - Copy-ready light, dark, classic editor, and accessibility themes in both App and CLI formats.
• Codex Themes Gallery - Searchable gallery and editor with more than 1,000 generated App themes and one-click export; source.
• CodexThemes - Curated gallery of downloadable Codex themes and whole-workspace skin references.
• DexThemes - Open-source gallery, live previewer, builder, and community catalog with more than 100 App themes; source.

Codex App Themes

Collections

• Codex Themes - Maintained light and dark collection with generated previews, paste-ready imports, a JSON Schema, and validation scripts. English and Chinese.
• Cosmic Codex Themes - Small bilingual collection containing Muse, Nebula, and Hacker light/dark share strings.
• Fadetouched - Earthy dark teal-green Codex port within a consistent multi-editor theme system.
• Lagoon Colors - OKLab-designed Midnight Lagoon and Morning Lagoon imports with WCAG-oriented contrast.
• Meowtheme - Multi-target color-scheme generator with ready-made light and dark Codex Desktop outputs.
• Utility Materials - Dark and light industrial palettes with paste-ready imports and Monaspace typography.

Individual Themes

• Anthropic Codex Theme - Warm Claude Desktop-inspired light and dark themes with generated share strings and validation.
• Claude Theme - Anthropic-inspired light and dark palettes shared across Codex, VS Code, Ghostty, and Zed.
• Cobalt Gold - Cobalt2-inspired App theme with optional, reversible runtime Markdown styling.
• Everforest Night - Warm, readable Everforest-inspired light and dark App imports.
• Midnight Purple 2077 - High-contrast dark purple theme optimized for white chat text and Chinese UI fonts.
• SovietWave - Retro-futurist SovietWave and Zhukov variants with matching Codex, VS Code, and Warp ports.

Codex CLI Themes

• Codex Terminal Themes - More than 200 TextMate themes with a searchable gallery, npm installer, interactive picker, metadata manifest, and diagnostics.
• Codex Themes CLI - Cross-platform manager that validates, previews, installs, and rolls back .tmTheme files while exporting matching terminal palettes.

Custom CLI themes live in $CODEX_HOME/themes and appear in /theme. A minimal manual setup looks like this:

$CODEX_HOME/themes/my-theme.tmTheme

[tui]
theme = "my-theme"

Skins and Deep Customization

These projects go beyond the official App color and font controls. Most launch Codex with a loopback CDP port and inject a reversible runtime layer; check each project's security model because implementations differ.

Runtime Skins

• CodeDrobe Skills - Agent skills and a cross-platform runtime for creating, applying, verifying, packaging, and restoring data-only themes.
• Codex Autoskin - Agent-native macOS and Windows engine that extracts a palette from one image, writes an inspectable theme, and verifies the result.
• Codex Dream Skin - macOS and Windows project for image-led full-window skins, saved themes, native controls, and one-click restore.
• Codex Styler - Local-first macOS and Windows theme editor with data-only packages, semantic surfaces, motion, and independently selectable companions.
• Codex Theme Studio - Local-first visual editor and hot-reload manager for macOS with modular layout controls and constrained theme data.
• HeiGe Codex Skin Studio - Bilingual macOS and Windows switcher with built-in themes, image color extraction, in-app selection, and restore controls.
• Taffy Codex Theme Studio - Windows-focused studio with replaceable imagery, 20 palettes, light/dark modes, acrylic, and liquid-glass styles.
• ThemeScape Studio - macOS dynamic theme editor with 20 layouts, environmental effects, local image upload, automatic color extraction, and restore.

App Modification Frameworks

• Codex++ - Large cross-platform tweak framework with extra settings, a native bridge, and a tweak SDK. It patches the local installation, so review its backup and restore flow carefully.

Historical

• jstxn/codex-themes - Early macOS launcher with 16 bundled themes and an in-app picker; deprecated after official App theming shipped, but useful as a compact implementation reference.

Builders and Tooling

• Codex Theme Builder - Single-file web app for editing light and dark App variants and exporting codex-theme-v1: strings.
• Codex Themes Toolkit - TypeScript pipeline that converts terminal palettes such as .itermcolors into Codex-compatible presets; gallery.
• Tinte - Agent-native design-system compiler and previewer with a Codex provider for multi-app theme generation.

Guides and Discussions

• Codex App Theming and Customisation - Detailed walkthrough of App appearance settings, partner themes, share strings, and the distinction from CLI theming.
• DexThemes Launch Discussion - Community launch thread that captures the first wave of gallery, builder, sharing, and import feedback.
• Semantic TUI Colors - Open request to extend CLI theming beyond code syntax into semantic interface colors.

Related

• Codex Theme Collection for VS Code - Ports official Codex UI palettes to VS Code.

Contributing

Found a great theme or built one yourself? Read the contribution guidelines before opening a pull request.

This list is intentionally curated rather than exhaustive. Projects should be usable, documented, relevant to a clearly named Codex surface, and meaningfully different from existing entries.

Footnotes

Awesome Codex Themes is an independent community project and is not affiliated with or endorsed by OpenAI. OpenAI and Codex are trademarks of OpenAI, L.L.C.