<ParaViewFilters>
  <Category name="Simple" menu_label="&amp;Simple" preserve_order="1" show_in_toolbar="1">
    <Proxy group="filters" name="Calculator" icon=":/pqWidgets/Icons/pqCalculator.svg"/>
    <Proxy group="filters" name="Contour" icon=":/pqWidgets/Icons/pqIsosurface.svg"/>
    <Proxy group="filters" name="Clip" icon=":/pqWidgets/Icons/pqClip.svg"/>
  </Category>
</ParaViewFilters>
