HelpBox visuals in the “Area Effector 2D” component section is not aligned with the latest style guide

Steps to reproduce:

1. Create a project
2. Add a "Triangle" object in the "Hierarchy"
3. Go to the "Inspector" window and click "Add Component"
4. Find and add the "Area Effector 2D" component
5. Observe the displayed help box UI

Actual results: The warning icon is too big.

Expected results: Icon size should be adjusted to the latest UI  style guides. Also help box size should be adjusted too.

Reproducible with versions: 6000.5.0a3

Tested on (OS): macOS - Tahoe 26.1

Notes: New UI changes are valid from U6.5