How to reproduce:
1. Create a new Unity project and a new scene in it
2. In the Hierarchy, right-click -> Create Empty
3. In the Inspector, add a "Box Collider" Component
4. Navigate to the "Include Layers" or "Exclude Layers" field and open the dropdown
Expected results: The dropdown matches the Editor's style
Actual results: The dropdown has a different style
Reproducible with: 2022.3.44f1, 6000.0.17f1
Can't test with: 2021.3.43f1 (No such fields)
Reproducible on: Windows 11 Pro
Not reproducible on: No other environment tested