How to reproduce:
1. Create a new Unity project and install the "In-App Purchases" package
2. Go to Edit -> Project Settings -> Services -> In-App Purchasing
3. Observe the warning
Expected results: The warning matches the Editor design guidelines
Actual results: The warning is not consistent with other Editor warnings
Reproducible with: 5.1.0, 5.1.1, 5.1.2 (6000.3.10f1, 6000.4.0b11, 6000.5.0a8
Reproducible on: Windows 11
Not reproducible on: No other environment tested