| classes b | classes := RTShape withAllSubclasses, TRShape withAllSubclasses. b := RTMondrian new. b shape circle. b nodes: classes. b edges connectFrom: #superclass. b shape bezierLineFollowing: #superclass; color: (Color blue alpha: 0.2). b edges notUseInLayout; connectToAll: #dependentClasses. b normalizer normalizeSize: #numberOfMethods using: #sqrt; normalizeColor: #numberOfMethods using: (Array with: Color green with: Color red) using: #sqrt. b layout cluster. b build. ^ b