macOS · 7 min · Upstream checked July 17, 2026

How to change the Codex background on macOS

Prepare a readable wallpaper, export it locally, and pass only documented image and color flags to the macOS customizer.

Platform behavior can change. Compare this guide with the original repository at commit 26c6c410e0e0.
01Prepare a wide source image
02Tune the crop in all five previews
03Export a high-resolution wallpaper
04Use the documented macOS customizer

Choose an image that leaves room for interface text

A scenic image can still be a poor workspace background. Prefer a wide source with a calm left edge and an identifiable focal point away from the composer. Avoid screenshots, visible account details, logos, and heavily compressed images. The Builder samples colors locally and lets you move the crop without creating an upload request.

Export the image, not a mystery installer

Use WebP for a smaller payload or PNG when lossless edges matter. The site can create 1920×1080 or 2560×1440 output and a separate v2 recipe. Crop, blur, vignette, and surface settings belong to the recipe; only the image plus accent, secondary, and highlight flags are currently documented by the macOS upstream customizer.

Apply through the original repository

Replace the placeholder in the generated macOS command with the absolute local wallpaper path. Read the current upstream README first and review every command. After applying, inspect Home, Task, Diff, Terminal-like content, and Settings surfaces. A good background keeps the native project selector, cards, composer, menus, and scrolling interactive.

The website preview does not prove that a future Codex build has the same renderer structure. Record the upstream commit and Codex version you actually tested.

Completion checklist

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