3 layouts
16:10, 16:9, and 4:3 art switch with the window ratio.
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Free Codex theme downloads
Free Codex themes.
No account required.
Start with a complete theme pack—not a wallpaper-only effect. Every validated pack includes three responsive background ratios, coordinated tokens, checksums, licensing, and fixed-version CLI guidance.
Local-first
The compatibility runtime stays on loopback and never patches the signed app.
Reversible
The fixed-version CLI installs, validates, selects, and restores every published pack.
17 original packs
Choose dark, light, quiet, or bold.
The artwork is original to this project and published under the per-pack CC BY 4.0 asset license. UI-state images are illustrative previews; runtime compatibility depends on the current Codex Desktop build.