2D Physics Core icon Assets are rendered distorted

Reproduction steps:
1. Create a new Universal 2D project
2. In the Project window navigate to Packages > 2D Physics Core > Editor > Icons > Asset
3. Observe the icons of the .asset files

Actual result: All .asset icons are rendered with distorted shapes and solid color areas
Expected result: .asset icons are rendered with the same shape and colors as their corresponding .png icons

Reproducible with: 6000.0.84f1, 6000.3.24f1, 6000.6.4f1, 6000.7.0b3

Reproduced on: macOS Tahoe 26.6.2 (M4)

Note: Issue is not reproducible with icon Assets of the Scriptable Render Pipeline Core package