<mugl>
  <legend border="0" opacity="0">
    <icon width="20" height="20" border="0"/>
  </legend>
  <title cornerradius="10"
         padding="4" color="0xCCCCCC" border="1">Asheville Arboretum</title>
  <horizontalaxis type="datetime" min="200905280000" max="200905281200">
    <labels format="%H:00%L%d %n" spacing="1D 12H 6H 4H 2H 1H" />
    <title/>
  </horizontalaxis>
  <verticalaxis type="number" min="0.0" max="30.0">
    <title angle="90" anchor="0 -1">Degrees Celsius</title>
  </verticalaxis>
 <plot>
   <legend label="Surface Temp"/>
    <verticalaxis><variable ref="surtemp"/></verticalaxis>
    <renderer type="line">
      <option name="linecolor" value="red"/>
      <option name="dotcolor"  value="red"/>
      <option name="dotsize"   value="2"/>
    </renderer>
 </plot>
 <plot>
   <legend label="Air Temp"/>
    <verticalaxis><variable ref="airtemp"/></verticalaxis>
    <renderer type="line">
      <option name="linecolor" value="blue"/>
      <option name="dotcolor"  value="blue"/>
      <option name="dotsize"   value="2"/>
    </renderer>
 </plot>
 <data>
    <variables>
      <variable id="time" type="datetime"/>
      <variable id="airtemp"/>
      <variable id="surtemp"/>
    </variables>
    <csv location="tsthourly.csv"/>
 </data>
</mugl>