<?xml version="1.0"?>
<param>
  <group name='Color'> 
    <value>black</value>    
    <value>blue</value>
    <value>light-blue</value>
    <value>green</value>
    <value>light-green</value>
    <value>yellow</value>
    <value>orange</value>
    <value>red</value>
  </group>
   <group name='Scale'>
     <value>lin</value>
     <value>log</value>
  </group>
  <group name='Symbol'>
    <value>no</value><value>plus (+)</value><value>asterisk (*)</value><value>period (.)</value><value>diamond</value>
    <value>triangle</value><value>square</value><value>X</value>
  </group>
</param>