anchor.diff:  
   == Add a toolbar
   
  -== Define a perspective
  +== Define a second perspective
  
positive.code: import com.google.gwt.user.client.ui.Label;
  
  @Dependent
  @WorkbenchScreen(identifier="PanelOne")
  public class PanelOne {
  
    private Label label = new Label("This is panel one");
  
    @WorkbenchPartTitle
    public String getName() {
      return "Panel One!";
    }
  
    @WorkbenchPartView
  
negative.code: you normally put in there for bootstrapping an UberFire app? Let's
  first create a panel and then come back to that question.
  
  == Create a Workbench Screen
  
  UberFire interfaces are made up of a few fundamental building blocks:
  Widgets, Layout Panels, Screens, Workbench Panels, Menu Bars, Tool
  Bars, and Perspectives. Layout Panels can contain Widgets and other
  Layout Panels, and Perspectives contain Workbench Panels, an optional
  Menu Bar, and an optional Tool Bar. Perspectives split up the screen
  into multiple resizeable regions, and end users can drag and drop
  Panels between these regions to customize their workspace.
  
  To create your first screen, create the file
  `src/main/java/com/mycompany/uftutorial/client/HelloWorldScreen.java`:
  
  [source,java]
  ---------
  package com.mycompany.uftutorial.client;
  
  import javax.enterprise.context.Dependent;
  
  import org.uberfire.client.annotations.WorkbenchPartTitle;
  import org.uberfire.client.annotations.WorkbenchPartView;
  