Make `Cmd +/-` affect font size rather than zooming

What version of the Codex App are you using (From “About Codex” dialog)?

26.324.21641 (1228)

What subscription do you have?

Pro

What platform is your computer?

Darwin 25.3.0 arm64 arm

What issue are you seeing?

On macOS, Cmd + and Cmd - do not seem to change the saved font sizes under Settings > Appearance.

Instead, they behave like zoom controls for the current view. The change does not stick, and after restarting the app, Codex comes back at the previously saved Appearance sizes.

What steps can reproduce the bug?

1. Open Codex on macOS.
2. Open Settings > Appearance and note the current UI font size and code font size.
3. Press Cmd + or Cmd -.
4. Go back to Settings > Appearance.
5. The Appearance font-size values have not changed.
6. Quit and relaunch Codex.
7. The app opens with the old saved Appearance sizes.

What is the expected behavior?

Cmd + and Cmd - should update the same font-size settings shown in Settings > Appearance, and those changes should persist after relaunch.

Additional information

The current behavior does not match the docs for the macOS shortcuts and Appearance settings:

• https://developers.openai.com/codex/app/commands/#keyboard-shortcuts
• https://developers.openai.com/codex/app/settings/#appearance