Transform Scale "Enable constrained proportions" button appears low-resolution at display scaling ≥ 225%

Steps to reproduce:

1. Make sure Display scaling is set to 225% or higher Scale
2. Create a new 3D URP project
3. In the Hierarchy, select any GameObject
4. In the Inspector, in the Transform Component Scale property observe the "Enable constrained proportions" button

Actual results: The button icon renders at a lower resolution than surrounding UI elements - appears blurry/pixelated

Expected results:  The icon renders crisply, matching the sharpness of adjacent icons and text in the Inspector

Reproducible with versions: 6000.0.0f1, 6000.3.16f1, 6000.4.9f1, 6000.5.0b10, 6000.6.0a5

Tested on (OS): Windows 11

Notes:

• Reproduced with both 3840x2400 and 2560x1440 display resolutions