WF3D's Cutefroggo sculpture is really nice, but the mesh is a single part and painting it in PrusaSlicer is a little tricky. This is a multipart model that's easier to print in multiple colours.
I used Meshmixer to identify and split the shells, fixed some minor mesh errors and saved it back as a multi-object 3mf file. I used 3DBuilder to colour the model preview, although that you still have to assign MMU filament to each object in PrusaSlicer.
The original model is quite large, and I left the size alone. The prints in my photos are were scaled to 70% in PrusaSlicer.
The author remixed this model.