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Feel free to hack Gaphor. Patches are welcome.Structure=========Gaphor contains the following modules:UML---The UML module contains the UML 2.0 data model. This part isquite stable and it is unlikely that code has to be changedhere.diagram-------The diagram module contains items that can be placed in diagrams.In most cases the classes NamedItem and Relationship can serveas bases for your class.ui--The user interface. This is where most of the work is.misc----Some utility stuff, such as Actions and aspects are put in here.