[flexcoders] How to make the element of list stressed and having the color blue (other style : bold, inline)

[Nini7016 Nini7016]

Hello 

I have a list :
                  <mx:List id="listFileUpload"  rowCount="1" height="45" x="10" 
y="72" width="289" visible="true" editable="false" borderStyle = "none"/>

in the dataoprovider , i put an arrayCollection : 
                  public var arrayFileUpload : ArrayCollection;

                 ...
                 arrayFileUpload.addItem(fileRef.name +"  [size : "+ 
fileRef.size+"]");
                            listFileUpload.dataProvider = arrayFileUpload;
                .....

I would like that the element of the list "listFileUpload" will be bold and 
stressed 

I don't find a style which can applicate to the dataprovider 


Thanks