Alloyui diagram builder addon - Canvas Size Issue

When I create a new org.vaadin.diagrambuilder.DiagramBuilder from the plugin!addon/diagram-builder. The cavas does not size or allow scrolling so half the diagram is missing (As seen in screen shot).
The only explicit sizing I am doing in vaadin is the following.

          Panel panel = new Panel("Scroll");

   public DiagramBuilder getDig() {
          // Initialize our new UI component
          DiagramBuilder diagramBuilder = new DiagramBuilder();

return diagramBuilder;

Any help would be great, thanks Sam

Hi, Sam,
This forum is not the best place to report problems with addons. Each addon usually has his own author, own github repository and own issue tracker. For DiagramBuilder, see