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Codex customization guides
Codex theme guides.
Make it dependable.
Clear, practical guidance for changing how Codex looks without losing readability, compatibility, or a safe path back.
Understand what Codex themes change and choose the right customization path.
Codex themes · 8 min
Codex Themes Guide
Understand native Codex themes, visual background themes, CLI themes, installation, sharing, and safety.
customize Codex · 6 min
Customize Codex
A practical guide to Codex appearance settings, custom colors, fonts, image backgrounds, and reversible theme packs.
Codex appearance settings · 5 min
Appearance Settings
Understand Codex base themes, accents, foreground and background colors, UI fonts, code fonts, and theme sharing.
Apply, verify, and restore a theme without modifying the signed application package.
change Codex theme · 5 min
Change Codex Theme
Change a Codex Desktop theme, import a custom pack, verify readability, and restore the default appearance.
Codex theme macOS · 5 min
macOS Installation
Install, verify, switch, and restore a custom Codex Desktop theme on Apple Silicon or Intel macOS.
Codex theme Windows · 5 min
Windows Installation
Install and safely restore a Codex Desktop theme on Windows without changing WindowsApps ownership or package signatures.
Prepare artwork for desktop layouts and use the clearest language when sharing it.
Codex background image · 7 min
Codex Background Image
Generate or prepare the right landscape image for a custom Codex background without broken crops or unreadable text.
Codex skin · 4 min
Theme vs Skin
Why theme is the clearest English term for Codex customization, and when skin or background is still useful.
Ready to try it?
From guide to working theme.
Start with an original free template, or bring your own image into the builder. No account is required to preview.