All platforms · 5 min · Upstream checked July 17, 2026

Verify a Codex theme SHA-256 checksum

Confirm that wallpaper, recipe, and token files match the transparent package manifest before use.

Platform behavior can change. Compare this guide with the original repository at commit 26c6c410e0e0.
01Extract the data-only ZIP
02Open SHA256SUMS
03Hash each named file
04Compare every hexadecimal value

What the site hashes

A safe theme ZIP contains a wallpaper, recipe.json, theme-tokens.css, README.md, and SHA256SUMS. The checksum list covers the wallpaper, recipe, and token file. The package contains no executable or installer; hashing helps detect accidental corruption or replacement after generation.

Verify on macOS or Linux

Open Terminal in the extracted directory and run shasum -a 256 followed by the exact file name. Compare the full 64-character value with SHA256SUMS. A single different character means the file is not identical and should not be assumed safe or complete.

Verify on Windows

Use Get-FileHash with -Algorithm SHA256 for each file and compare the Hash field. Checksums establish file identity, not author trust: a malicious publisher can hash a malicious file. Combine checksums with an original source, readable contents, and a known review process.

Checksums do not make executable code safe. `codextheme.tools` packages are intentionally data-only.

Completion checklist

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