What this guide covers

A good Codex Dream Skin background is a pure wallpaper, not a screenshot with UI. It needs enough resolution, a quiet reading area, rights-safe assets, and verification across Home, tasks, and diffs.

This guide focuses on Codex background image and keeps visual design, installation boundaries, verification, and restore behavior in one reviewable workflow.

When to use it

Use this path when native appearance controls are not enough, but keep the boundary clear: visual recipes, local tooling, verification, and restore are separate concerns.

For managed machines, shared computers, or teams with strict endpoint policies, prefer the lowest-risk option and document every local command before running it.

  • Use a pure wallpaper with no UI, logo, text, or watermark.
  • Prefer a 2560 x 1440 image with the subject away from the left reading area.
  • Tune focusX, focusY, safeArea, and taskMode only after the image works.
  • Verify Home, task text, code blocks, and the composer before sharing.

Risk boundary

The main risk is importing a screenshot or high-information image that covers real Codex controls and makes the workspace look polished but unusable.

A theme should not ask for API keys, provider settings, auth files, or changes to unrelated Codex workspace state. If it does, treat the package as application software rather than visual content.

Commands and checks from the source guide

The uploaded guide includes platform commands. Review each command against the upstream repository and your local environment before running it.

Create a 2560x1440, 16:9 programming workspace background.
The image should fill the frame continuously, with no window, button, sidebar, input box, logo, text, or watermark.
Keep the left 50% low-contrast and low-information; place the subject around the right 58%-88%.
~/.codex/codex-dream-skin-studio/scripts/customize-theme-macos.sh --image "/Users/your-name/Pictures/codex-bg.png" --name "My Codex theme"
~/.codex/codex-dream-skin-studio/scripts/load-image-theme-macos.sh --file "/path/to/image.png" --appearance auto --focus-x 0.72 --focus-y 0.45 --safe-area left --task-mode ambient

Recommended workflow

Start with a low-contrast left side, place the visual subject to the right, and treat readability as the quality gate.

After applying a skin, test Home, a normal task, diff review, menus, composer focus, and restore. A screenshot-only check is not enough for a developer tool.

Final recommendation

Treat Codex background image as a workflow, not a decorative file. The result is ready only when the user can explain what is data, what is tooling, what stays local, and how to return to stock.

FAQ

Is Codex background image safe to use?

It can be safe when the package is data-only, the source is clear, the local tooling is reviewed, and the restore path has been tested.

What should I test before using it every day?

Test Home, task pages, diff review, menus, composer focus, logs, and restore. Do not rely only on a pretty home-screen screenshot.

Sources and further reading