title: Is it possible to draw standalone arrows with PlantUML?
body: <p>I'm creating a diagram with different types of arrows (line, dashed, dotted, etc.).  But instead of adding a label to each arrow I would like to create a legend where a <em>replica</em> of each arrow type is displayed alongside its meaning.</p>
  <p>Is there a way to tell PlantUML to simply draw a small segment of a specific arrow type?</p>