How to reproduce:
1. Create a new Unity project
2. Go to Window -> Rendering -> Light Explorer
3. In the Lights tab, navigate to the columns ("Enabled", "Name", "Type, etc.)
4. Click on any of them to enable sorting based on this column
5. Observe the arrow

Expected results: The arrow has an appropriate size, and it is easy to see its direction
Actual results: The arrow is small and looks like a dot from a distance

Reproducible with: 6000.0.57f1, 6000.1.16f1, 6000.2.2f1, 6000.3.0b1

Reproducible on: macOS Sequoia 15.6 (M1)
Not reproducible on: No other environment tested

Note: This might be especially important for people with the worse vision