[BUG] Tagging files "@[filename]" overlay is transparent showing conversation history through it

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?

When tagging a file in the prompt the overlay is transparent.

What Should Happen?

The file overlay should be opaque.

Error Messages/Logs

Steps to Reproduce

In the prompt textarea type "@" to open the file overlay.

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

2.0.9

Claude Code Version

2.0.14 (Claude Code)

Platform

Anthropic API

Operating System

macOS

Terminal/Shell

Cursor

Additional Information

<img width="650" height="747" alt="Image" src="https://github.com/user-attachments/assets/2620bfcb-8064-433f-8bad-c1b21eb60e18" />