claude-code - 💡(How to fix) Fix [BUG] Copy button missing on hover + font size reduced (Windows Desktop App) [1 comments, 2 participants]

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anthropics/claude-code#48461Fetched 2026-04-16 06:59:32
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Error Messages/Logs

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Preflight Checklist

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

What's Wrong?

aAfter updating Claude Code Desktop App on Windows, two regressions appeared:

  1. Copy button on hover is gone — Previously, hovering over chat messages or code blocks showed a copy button (top-right corner). This no longer appears.
    1. Font size noticeably smaller — Text in chat responses is visibly smaller compared to the previous version.

What Should Happen?

  1. Copy button should appear on hover over chat message blocks (as it did in the previous version)
    1. Font size should remain the same as the previous version

Error Messages/Logs

Steps to Reproduce

  1. Update Claude Code Desktop App to the latest version on Windows 10
    1. Open any conversation and send a message
    1. Hover over any chat message or code block — no copy button appears (previously it showed a copy icon at top-right)
    1. Compare font size with previous version — text is noticeably smaller

Claude Model

None

Is this a regression?

Yes, this worked in a previous version

Last Working Version

No response

Claude Code Version

2.1.56 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Windows Terminal

Additional Information

Additional regressions noticed:

  1. Plan section at the bottom is missing — Previously there was a Plan section visible at the bottom of the chat. This is also gone after the update. Environment: Windows 10 Home, Claude Code Desktop App

See attached before/after screenshots for comparison.

extent analysis

TL;DR

The most likely fix involves reverting or adjusting recent changes in the Claude Code Desktop App's UI components, specifically those related to hover effects and font sizing.

Guidance

  • Review the CSS or styling files associated with the chat message blocks and code blocks to ensure that the hover effect for the copy button is still defined and correctly referenced.
  • Check the font size settings in the CSS or styling files to identify any changes that might have reduced the font size in chat responses.
  • Investigate the JavaScript code responsible for rendering the Plan section at the bottom of the chat to understand why it is no longer visible.
  • Compare the current version's codebase with the previous version to isolate changes that could be causing these regressions.

Example

No specific code example can be provided without access to the actual codebase, but a general approach might involve checking CSS rules like .chat-message:hover .copy-button { display: block; } for the copy button and font-size properties for chat response text.

Notes

Without direct access to the code or more detailed information about the changes made in the latest version, it's challenging to provide a precise fix. The suggestions above are based on common practices in web development and may need to be adapted to the specific technologies and frameworks used by the Claude Code Desktop App.

Recommendation

Apply a workaround by manually adjusting the CSS or styling settings in the user's local copy of the app, if possible, to restore the previous behavior until an official fix is released. This approach allows users to mitigate the issues temporarily without waiting for an update.

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claude-code - 💡(How to fix) Fix [BUG] Copy button missing on hover + font size reduced (Windows Desktop App) [1 comments, 2 participants]