If you've been squinting at Codex's color-coded diff bars and wishing for something more familiar, OpenAI just shipped a small but welcome fix. The OpenAI Developers account announced a new "diff markers" toggle in the Codex desktop app's Appearance settings, letting you swap the default color-bar style for the classic + and - prefix markers that every developer has been reading since the dawn of git diff.
The team is calling it a "papercut" fix, which is their term for small, friction-reducing improvements that don't make headlines but quietly make the tool better to live with every day.
What actually changed
OpenAI shipped a new diff markers setting in the Appearance panel. If you prefer classic + / - markers when reviewing diffs, you can now use those instead of only color-coded diff bars. The default stays the same unless you opt in, so existing users won't see any disruption.
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