Can anyone tell me how to design UML's Object Node in PlantUml ? According to the UML's v2.5 spec (section 15.2.4), Object Nodes are supposed to be square, while the regular and most used Action Nodes are squircles.
All I can find in the PlantUml documentation is how to display all the Action Nodes octagon ...
I'm working with the PlantUml's v1 activity grammar :
@startuml
(*) --> "First Action Node"
--> "HERE I WANT AN OBJECT NODE"
--> "Last Action Node"
--> (*)
@enduml