
<smil xmlns="http://www.w3.org/2005/SMIL21/Language">
  <head>
    <layout>
      <root-layout backgroundColor="#eeffcc" width="640" height="480"/>
      <region id="T2" height="170" width="175" backgroundColor="#b8860b" z-index="1" />
      <region id="r" fit="fill"/>
    </layout>
  </head>
  <body>
    <par dur="indefinite">
      <animateColor additive="sum" attributeName="backgroundColor" calcMode="discrete" targetElement="T2" keyTimes="0;.1;.8" values="#ff0000;#00ff00;#0000ff" begin="1s" dur="10s" fill="remove"/>
    </par>
  </body>
</smil>