A Roassal3 Layout to distribute labels and edges in a canvas using Box2DLiteForPharo.
One of the possibilities is this animated name cloud of classes in the hierarchy of Collection where font size is relative to number of methods defined in the class (browse methods in RSBox2DLayoutExamples for more information):
Evaluate the following script in a Pharo 9 image.
Metacello new
baseline: 'Box2DRoassal';
repository: 'github://ObjectProfile/Box2DRoassal/src';
load.