In a Light theme editor the text in search windows gets highlighted in grey when text is selected

Steps to reproduce:

1. Create a new project
2. Set the Editor theme to Light (Unity -> Settings -> General -> Editor Theme)
3. Open the Package Manager
4. Type any text in the search field
5. Observe the text field
6. If that didn't trigger the issue, double-click on the text to select it and then click on it again to deselect it

Actual results: The text is unreadable since it's all marked grey

Expected results: The text is readable

Reproducible with versions: 6000.3.0a3

Not reproducible with versions: 6000.3.0a2

Tested on (OS): MacOS 15.5 M4

Notes:

• Also happens in some other Search fields, but not all of them. Global Search window is also affected, but Console/Hierarchy search bars are not
• Issue does not occur on Dark theme editor