CodexThemes.app

Codex theme import not working: safe checks

If theme import is missing or rejects a string, confirm the string starts with codex-theme-v1:, remove smart quotes, and validate it again. If Codex Desktop still has no visible import control, treat the workflow as unavailable in that version rather than forcing it.

Last reviewed
2026-07-17
Applies to
Codex Desktop; exact import availability remains version-dependent

Check the string

  1. Confirm the codex-theme-v1: prefix is present.
  2. Replace typographic smart quotes with straight JSON quotes.
  3. Import the string into the local creator to surface missing fields, invalid HEX colors, or an invalid variant.
  4. Copy the newly validated output and try the visible import control once more.

If the control is missing

Do not assume a Settings path from a screenshot or older build. Public documentation reviewed on the date above did not define a stable native import contract. Keep Codex unchanged and recheck release documentation for your version.

Recover

A failed paste should not require cleanup. If appearance changed, select the previous theme from visible settings; do not delete preferences or application files as a first troubleshooting step.

Sources and next steps

These sources establish general Codex product context. They did not document a stable codex-theme-v1 Desktop import contract when reviewed, which is why this guide labels the import workflow as observed and version-dependent.