Windows · 7 min · Codex Dream Skin checked July 29, 2026

How to change the Codex background on Windows

Prepare a UI-free image, import it through the documented Windows tray workflow, and verify or restore the managed theme safely.

Edited and reviewed by CodexTheme Tools editorial. Reviewed . Status: Published.

Sources: Reviewed against the current upstream Codex theme sources and Codex desktop behavior cited in this guide. No site-owned macOS or Windows device verification is claimed unless a published runtime receipt exists.

Platform behavior can change. Compare this guide with the Codex Dream Skin repository at commit 611c10176a27.
01Check the current Windows upstream guide
02Prepare a UI-free local image
03Import it from the system tray
04Verify the live UI and Restore path

Windows v1.3.3 includes a managed local-image workflow

The upstream Windows guide documents an ordinary current-user Setup.exe with a bundled runtime, local image import from the system tray, local Canvas analysis, and saved-theme switching under %LOCALAPPDATA%\CodexDreamSkin. It does not require a global Node.js install, upload the image, or call an external AI service.

Prepare the wallpaper before importing it

Use the Builder to evaluate crop, palette, and readability, then export a UI-free wallpaper. The upstream Windows limits are 16 MB per image, 16,384 pixels per edge, and 50 megapixels total. A v2 recipe remains portable settings data; select the wallpaper itself in the upstream tray action.

Verify the live result and keep Restore visible

Use the original v1.3.3 Setup.exe and documented background-image action from the tray, then inspect Home plus a normal Task. Confirm that verification checks the staged active theme; native composer, sidebar, menus, scrolling, and route changes must remain interactive. Use the tray Restore or Installed apps uninstaller instead of editing WindowsApps.

The public v1.3.3 installer is unsigned. Verify the original GitHub Release and checksum, and do not disable Defender, SmartScreen, or Smart App Control. A codextheme.tools ZIP is data-only and is not an installer.

Completion checklist

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