Steps to reproduce:
1. Create new Unity project using Universal 3D Template
2. Make sure Editor Theme is set to Light
3. Build project via Build Profiles window
4. Open Build Analysis window
5. Find “Messages” foldout
6. In Messages window press “Collapse”
7. In reported Log press on white label with “1” in it
8. Observe the “1” in the label
Actual results: “1” blends in with while label color when Editor Theme is set to Light
Expected results: The "1" counter should have sufficient color contrast against the white label background, remaining clearly readable when Editor Theme is set to Light
Reproducible with versions: 6000.6.0a6
Can’t test with versions: 6000.0.76f1, 6000.3.15f1, 6000.4.8f1, 6000.5.0b9 (No Build Analysis)
Tested on (OS): Windows 11, macOS Tahoe 26.4.1 (M1)