Use Contrast In Shape
To Focus Attention
The first thing you notice in any quilt is the color. Only after that do you pay attention to the design.
The predominant shape in this quilt design is a circle. At first you might assume that all the shapes are circles. But then you notice the diamonds. And once you do, because they are few and different, your eye comes back to them again and again.
The circles are like beads on a string and they lose their individuality they are a part of a team. Or in this case three teams. The diamonds are the team stars.