You can import color set materials downloaded from Clip Studio ASSETS using the Color Set palette in Clip Studio Paint.The process depends on your dev
Downloading and Installing Assets
Boost your efficiency with color sets! -Using palettes and adding/removing- “Tool settings/coloring #8” by ClipStudioOfficial - Make better art
Graphic Design - Features & Resources - CLIP STUDIO PAINT
Clip Studio Paint - Draw and Paint Anywhere - - Microsoft Apps
Transferring CSP To a New Computer
Graphic Design - Features & Resources - CLIP STUDIO PAINT
Customizing the Command Bar
Release Notes - Clip Studio Paint
How do I import downloaded materials to Clip Studio Paint? - Clip Studio Official Support
Can not find/import downloaded materials in CSP? - CLIP STUDIO ASK
How to create custom brushes in Clip Studio Paint EX - Astropad