Well, tutorial 2.2 explains it all fairly clearly....
Draw a shape, maybe an Oval (L), make sure that Auto-fill is unchecked,
draw another smaller oval inside the first one (that’s your hole) like a doughnut,
make sure that Auto-fill is still unchecked (no fill).
Switch to the Select Points Tool (G) and select all points, or go to Edit / Select All.
Select the Create Shape Tool (U) - you will see immediately the red checkerboard
and the hole, choose your colour, hit the spacebar and render your image.