Listing 1. picnik.xul

<?xml version="1.0"?>

<!DOCTYPE picnik SYSTEM "chrome://picnik/locale/picnik.dtd">

<overlay id="picnik-overlay"
     xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
     xmlns:html="http://www.w3.org/1999/xhtml">

  <script type="application/x-javascript"
          src="chrome://picnik/content/common.js"/>
  <script type="application/x-javascript"
          src="chrome://picnik/content/contextmenu.js"/>

  <popup id="contentAreaContextMenu">
    <menuitem class="menuitem-iconic"
        id="picnik-ctx-edit"
        insertafter='context-viewimage'
        label="&picnik.edit_picture;"
        oncommand="picnikContextMenu.editImage();"
        image="chrome://picnik/content/picnik_16x16.png"/>
  </popup>
</overlay>