[BUG] AskUserQuestion dialog dims/greys out content above, making context unreadable while answering

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?

All content above the AskUserQuestion dialog is dimmed/greyed out. The user cannot read the plan context needed to answer the question.

The ExitPlanMode "Accept this plan?" dialog does NOT have this problem — only AskUserQuestion does.

<img width="974" height="735" alt="Image" src="https://github.com/user-attachments/assets/6742b1aa-5775-4fe0-8125-25813abdc785" />

What Should Happen?

Content above the AskUserQuestion dialog remains fully readable (like the ExitPlanMode "Accept this plan?" dialog does).

<img width="901" height="573" alt="Image" src="https://github.com/user-attachments/assets/3d284b23-39a7-4dc6-97f9-792301d11f69" />

Error Messages/Logs

Steps to Reproduce

1. Open a project in VS Code with Claude Code extension
2. Ask Claude to plan a complex task (triggers plan mode)
3. Claude uses AskUserQuestion to ask a clarifying question
4. Try to read the plan context above the dialog

Claude Model

Opus

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.42

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

Prior Search

Searched for existing reports:

• AskUserQuestion dim background content unreadable — no matching issues
• question dialog dim — no matching issues
• plan mode grey gray dim content — no matching issues

Related but different issues:

• #10229 — AskUserQuestion returns empty results
• #12609 — Feature request for interactive UI (closed)
• #10258 — Cannot disable Interactive Question Tool

Comparison

The ExitPlanMode "Accept this plan?" dialog keeps content above fully readable.
Only the AskUserQuestion dialog dims the content.

Screenshots attached showing both behaviors.

---

This issue was investigated and filed with the help of Claude Code (Opus 4.6).