<?xml version="1.0"?>
<param>
  <args>
      <arg comp='1'>RefFrame</arg>
      <arg comp='2'>RefFrame</arg>
      <arg comp='3'>RefFrame</arg> 
  </args>
  <settings>
    <arg>Color</arg>
    <arg comp='0'>Scale</arg>
    <arg>Symbol</arg>
  </settings>
</param>