examples/org.eclipse.emf.ecp.makeithappen.view.group.renderer/plugin.xml

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.4"?>
<plugin>
   <extension
         point="org.eclipse.emf.ecp.ui.view.swt.renderers">
      <renderer
            renderer="org.eclipse.emf.ecp.makeithappen.view.group.swt.pgroup.PGroupRenderer">
         <staticTest
               element="org.eclipse.emf.ecp.view.spi.group.model.VGroup"
               priority="10">
         </staticTest>
      </renderer>
   </extension>

</plugin>