Example documents are deployed with application, so just check File / Recents menu item.
Most complex example: a logic game with a buckets of water (sources).
Test of loading Blender 3D model (sources).
Test of the filters (sources).
Just a test of the color effects (sources).
Moving object along guide line (sources).
Just a test of filling with linear gradient (sources).
Test of negative scaling (sources).
Tranformations test (sources).
Simple motion tween test (sources).