Sketchup 2025 no materials in library

Can anyone explain what I need to do to get the standard materials into the 2025 version? My previous versions have a lot of choices. I have never had to create any manually and thus my materials folders from previous versions are empty.

The old standard materials are in your Program Data folder, for instance for SketchUp 2024: C:\ProgramData\SketchUp\SketchUp 2024\SketchUp\Materials

Thank you so much!