Description
I would like to be able to set the shape of a place or transition. In Graphviz this could be done by changing 'shape' in the dumper based on the metadata attributes (e.g. to 'diamond'). I'm not sure about the mermaid and plant uml implementation possibilities, but if possible I'm willing to provide a PR. First I wanted to check if you are interested in such a feature and what sollution path to take. One way to address this issue is to introduce a set of style classes: (Graphviz|Mermaid|PlantUml|)(Transition|Place)DumperStyle(|Interface), which can handle the metadata and transform it into the proper style. Another way is to just add more of the parsing of the attributes in the various dumpers, which could get cluttered.