palemoon-dev/platform/devtools/client/shared/widgets/VariablesView.xul

<?xml version="1.0"?>
<!-- This Source Code Form is subject to the terms of the Mozilla Public
   - License, v. 2.0. If a copy of the MPL was not distributed with this
   - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
<?xml-stylesheet href="chrome://global/skin/global.css"?>
<?xml-stylesheet href="chrome://devtools/content/shared/widgets/widgets.css" type="text/css"?>
<?xml-stylesheet href="chrome://devtools/skin/widgets.css" type="text/css"?>
<!DOCTYPE window [
  <!ENTITY % viewDTD SYSTEM "chrome://devtools/locale/VariablesView.dtd">
  %viewDTD;
]>
<window xmlns="http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul"
        title="&PropertiesViewWindowTitle;">

  <script type="application/javascript;version=1.8"
          src="chrome://devtools/content/shared/theme-switching.js"/>
  <vbox id="variables" flex="1"/>
</window>