So far, we've been limiting ourselves to very boxy shapes. Rows, Columns, Stacks, and even Containers are just boxes. Boxes will cover the majority of UIs that you would want to create, but sometimes you may need to break free from the tyranny of the quadrilateral.
Enter CustomPaint. Flutter has a fully featured vector drawing engine that allows you to draw pretty much whatever you want. You can then reuse these shapes in your widget tree to make your app stand out from the crowd.
In this recipe, we will be creating a star rating widget to see what CustomPaint is capable of.
