Thansk for the tips!
Yes, since PlantUML “compiles” to graphviz, one can say graphviz is better than PlantUML. But I’m sure you don’t prefer coding in asm over ruby, but asm is definitely more powerful 
.
Since you can fire up your own plantuml server and the plugin should just fire up a query and will get the result image I am suprised noone has integrated it yet.
I’d choose Mermaid, but PlantUML has way more type of diagrams, which would be usable for us.
Maybe I’ll start embedding images like
which is editable on PlantUML Web Server.