title: I need help styling FormItem components in Flex
body: <p>I have a form that I would like to style. specifcally I would like to chnage the background color of the form item's label. (the backgorundColor attribute changes both the label and the inputs background color)</p>
  
  <p>i.e.</p>
  
  <pre>
  <code>
  &lt;mx:Form>
      &lt;mx:FormItem label="username:">
          &lt;mx:TextInput />
      &lt;/mx:FormItem>
  &lt;/mx:Form>
  </code>
  </pre>
  
  <p>I would like to make the label with 'username:' have a different background color, but have the text input still be the default background color. </p>
  
  <p>is this possible with a FormItem ?</p>