Steps to reproduce:

1. Create a new Unity project
2. Install the "Asset Manager" package
3. Open Asset Manager window (Window -> Asset Manager)
4. Add a few assets
5. Select any asset and click the "Import" button
6. Once the initial import is complete, click the "Reimport" button
7. Observe warning icons

Actual results: Poor contrast of the warning icon in the Reimport window when using the Light theme
Expected results: The warning icon should have sufficient contrast and be clearly visible against the background

Reproducible with versions: 1.5.1, 1.6.0, 1.7.0 (6000.0.58f1, 6000.2.6f1, 6000.3.0b3)

Tested on (OS): macOS - Sequoia 15.6.1