[BUG] "Thinking" text bullet is half-white when the text is a shade of yellow

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 the Claude Code UI is thinking, an animated bullet is displayed to the left of the "thinking" text, which changes colours during the process. If the text is a shade of yellow, only the left-hand half of the bullet is coloured - the right-hand half remains white.

If the text is a shade of red, the bullet is correctly coloured.

What Should Happen?

The bullet should be the same colour as the rest of the text for all shades.

Error Messages/Logs

Steps to Reproduce

Ask Claude to perform a task that will run for several minutes, and observe the colour of the animated bullet.

Claude Model

Sonnet (default)

Is this a regression?

I don't know

Last Working Version

_No response_

Claude Code Version

2.1.170 (Claude Code)

Platform

Anthropic API

Operating System

Windows

Terminal/Shell

Other

Additional Information

<img width="1115" height="628" alt="Image" src="https://github.com/user-attachments/assets/2838c560-bf22-4426-a80a-33b33caf048c" />
<img width="1115" height="628" alt="Image" src="https://github.com/user-attachments/assets/fec74762-0796-48b5-84af-8a0570046ffc" />