<extension 
    name="Conway's Game of Life"
    description="Explore cellular automata collaboratively."
    thumbnailUrl="http://www.lehnerstudios.com/wave/life/images/thumbnail-120.png">
  <author name="Charles Lehner"/>
  <menuHook location="toolbar" text="Insert a Conway's Game of Life gadget." 
      iconUrl="http://www.lehnerstudios.com/wave/life/images/icon.png">
    <insertGadget url="http://www.lehnerstudios.com/wave/life/life.xml"/>
  </menuHook>
</extension>