PlantUML uses [Graphviz](https://www.graphviz.org/) for his graph visualization. Thus the rendering itself is done automatically for you - that it one of the biggest advantages of using PlantUML.
PlantUML uses [Graphviz](https://www.graphviz.org/) for its graph visualization. Thus the rendering itself is done automatically for you - that it one of the biggest advantages of using PlantUML.
...and also sometimes one of the biggest disadvantages, if the rendering is not what the user intended.
...and also sometimes one of the biggest disadvantages, if the rendering is not what the user intended.