52. The medium of claim 51 , wherein the instructions further comprise instructions that when executed by the computing device: receive a modification to the contents of the at least one descendant class of graphical objects.
52. The medium of claim 51 , wherein the instructions further comprise instructions that when executed by the computing device: receive a modification to the contents of the at least one descendant class of graphical objects. 53. The medium of claim 52 , wherein at least one of the aspects of that is inherited is modified.