<fxlayout help_file="FogIno.pdf">
  <page name="Fog Ino">
    <control>radius</control>
    <control>curve</control>
    <control>power</control>
    <control>threshold_min</control>
    <control>threshold_max</control>
    <control>alpha_rendering</control>
  </page>
</fxlayout>