Steps to reproduce:
1. Create new Unity project using empty URP 3D Template
2. In project create Shader Graph Asset (Assets > Create > Shader Graph > URP > Lit Shader Graph)
3. Open Shader Graph Asset
4. Press “Space” to open Node creation window
5. Expand “SpeedTree” section and select “Speed Tree 8 Interpolated Normals” Node or “Speed Tree 8 Billboard”
6. Observe the Node 

\\
Actual results: There is an empty space on right next to Preview window in Node

Expected results: There should be no empty spaces next to Preview window in Node

\\
Reproducible with versions: 6000.0.60f1, 6000.2.8f1, 6000.3.0b6, 6000.4.0a2

\\
Tested on (OS): Windows 11, macOS Silicon Tahoe 26.0 (M1)