[BUG] Ctrl+C does not work in `/theme`

Preflight Checklist

• [x] I have searched existing issues and this hasn't been reported yet
• [x] This is a single bug report (please file separate reports for different bugs)
• [x] I am using the latest version of Claude Code

What's Wrong?

The /theme command eats Ctrl+C and I can't quit. Double Ctrl+C works elsewhere as far as I can tell.

What Should Happen?

Double Ctrl+C in /theme should quit Claude Code but it doesn't.

Error Messages/Logs

Steps to Reproduce

1. Run claude.
2. Use /theme or it will popup immediately if it is your first time starting it.
3. Try to use Ctrl+C two times to quit the app, it wont'.

Claude Model

None

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.22

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

iTerm2

Additional Information

https://github.com/user-attachments/assets/cdbc10f3-4b37-4138-ad72-2654292db776