openai / openai/codex

Codex sidebar background color changes when switching between different windows

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app bug
Dominant language
Rust
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Forks
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Description

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

26.813.12317

What subscription do you have?

Pro

What platform is your computer?

Darwin 25.0.0 arm64 arm

What issue are you seeing?

In Codex fullscreen mode, the sidebar background color unexpectedly changes when switching to another window and then back.

focuse on other window, then move cursor back to Codex, it will foucs automatically and sidebar bg color change.

Image Image Image
What steps can reproduce the bug?
  1. Make Codex to fullscreen mode;
  2. Switch to other desktop or focus on other monitor, the sidebar bg color will change to gray;
  3. back to Codex, the bg color will change;
What is the expected behavior?

I think the bg color should always be gray like following:

Image
Additional information

I have already seen this issue in a few versions.

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

No source file or test is named. First reproduce the issue on the reported macOS platform by entering fullscreen, focusing another window or desktop, and returning to Codex. The work is done when the sidebar background remains consistently gray through those focus changes.

Written by the indexing model from the issue text.

Assessment

Domain
desktop
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
55/100

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