I would like to increase the interior padding of a box that is used to group participants together, as in the following example:
Hamlet -> Laertes : Stab
Hamlet <- Laertes : Confess
Laertes -> Laertes : Die
Hamlet -> Claudius : Accuse
Hamlet -> Claudius : Stab
Claudius -> Claudius : Die
When I render the above diagram, the resulting image has the self-referential flows is very close to the border of the box that surrounds the second two participants:
I would prefer that the box that groups participants have a larger interior padding so that the two lines are more distinct.
I was hoping to find a skinparam that would control this setting, so my more general question is, how can I get a list of all skinparams supported by a particular skin (or by all skins)? I'm guessing that if I could do this, I could discover the answer to many general questions like the one posed above.
Thanks for the help!