Steps to reproduce:
1. Create new Unity project using empty HDRP Template
2. Switch Editor theme to Light
3. In Project window create empty VFX Asset (Assets > Visual Effects > Visual Effect Graph)
4. Drag VFX Asset to the Scene view
5. Select "New VFX" GO in Hierarchy window
6. In Inspector window > General > Asset Template press on Object field button
7. In search "Select item..." window select any VFX Asset
8. Observe the VFX Asset icon and highlight color in the window

Actual results: blue color in VFX Asset icon blends with selection highlight color, icon becomes difficult to see
Expected results:  VFX icon and selection highlight color should not blend in together when selected

Reproducible with versions: 6000.0.58f1, 6000.2.6f1, 6000.3.0b2

Tested on (OS): Windows 11