Steps to reproduce:
1. Create new Unity project
2. Install AR Foundation package (com.unity.xr.arfoundation)
3. Once installed, observe the Console window

Actual results:  Errors - Unable to load the icon - are thrown in the Console window
Expected results: No errors are thrown in the Console window

Reproducible with versions: 6000.0.50f1, 6000.1.5f1, 6000.2.0b3

Tested on (OS): macOS Silicon, Sequoia 15.5

Errors:
*
{code:java}
Unable to load the icon: 'Packages/com.unity.xr.arfoundation/Editor/Icons/ViewEnvironment.png'.
Note that either full project path should be used (with extension) or just the icon name if the icon is located in the following location: 'Assets/Editor Default Resources/Icons/' (without extension, since png is assumed)
UnityEditor.SceneView:OnEnable () (at /Users/bokken/build/output/unity/unity/Editor/Mono/SceneView/SceneView.cs:1353)
{code}

*
{code:java}
Unable to load the icon: 'Packages/com.unity.xr.arfoundation/Editor/Icons/NoViewEnvironment.png'.{code}

*
{code:java}
Unable to load the icon: 'Packages/com.unity.xr.arfoundation/Editor/Icons/XREnvironment.png'.{code}

*
{code:java}
Unable to load the icon: 'Packages/com.unity.xr.arfoundation/Editor/Icons/ArrowCaretLeft.png'.{code}

*
{code:java}
Unable to load the icon: 'Packages/com.unity.xr.arfoundation/Editor/Icons/ArrowCaretRight.png'.{code}

*
{code:java}
Unable to load the icon: 'Packages/com.unity.xr.arfoundation/Editor/Icons/AddEdit.png'.{code}