There are only two interesting ways to pack a
homogeneous box. Recall that the expand parameter is irrelevant for
homogeneous boxes; so the two cases correspond to the
fill parameter's
setting.
If fill is FALSE, you get Figure 9.
Notice that the box is logically divided into three
equal parts, but only the largest child widget occupies
its entire space. The others are padded to fill their
third of the area. If
fill is TRUE,
you get
Figure 10; all the widgets are the same size.
