How to reproduce:
1. Create a new URP Unity project
2. Go to Edit -> Project Settings -> Graphics
3. Expand the "Adaptive Probe Volumes" field
4. Click between the "Scale Bias With Min Probe Distance" field name and the field checkbox
5. Observe the header of the expandable field

Expected results: The header doesn't change the color
Actual results: The header becomes blue and after this its highlight is always blue instead of grey

Reproducible with: 6000.0.46f1, 6000.1.0b15, 6000.2.0a9

Reproducible on: macOS Sequoia 15.3 (M1), Windows 11
Not reproducible on: No other environment tested

Note: Other sections in the Project Settings are not behaving like this