I don't know if this is a problem with Doxygen or PlantUML. I'd like to embed the PlantUML in my source files as such (to use one of the examples):
/** Sender class
* Sender->Receiver : Command()
* Sender<-- Receiver : Ack()
However, I do NOT get an .SVG file, I get a .PNG file. I'd really like to get a .SVG file since it scales much better.