title: Apache POI Color cell with formula
body: <p>I want create a excel with Apache POI in java and I must insert in a cell a formula: A3=B3+C3.</p>
  
  <p>Is possible to insert another formula in A3 that color the cell if his value is> 0?</p>
  
  <p>I use Apache POI 2.5.1</p>