[BUG] macOS App sidebar fully broken after switching to light mode

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

26.513.31313

What subscription do you have?

Not relevant for this issue

What platform is your computer?

Apple Silicon macOS

What issue are you seeing?

macOS app sidebar rendering is fully broken after switching from dark mode to light mode, does not matter if you have custom appearances enabled.

What steps can reproduce the bug?

1. Launch codex (while having dark mode enabled)
2. Switch system theme to light mode
3. Profit, sidebar is now fully broken
4. You can interact with it and amuse yourself

<p>
<img width="48%" alt="Dark mode sidebar" src="https://github.com/user-attachments/assets/1d220f8b-0edb-48e6-b3d2-4e5e9b085dfa" />
<img width="48%" alt="Light mode broken sidebar" src="https://github.com/user-attachments/assets/2e153182-3b6c-4777-9a41-15d7e4d04883" />
</p>

What is the expected behavior?

Sidebar to not be broken

Additional information

Workaround: Switch back to dark mode or restart app.