title: Flex 4 Change Main Application Background Color at Runtime
body: <p>Is it possible within Flex 4 to change the background color of an <code>&lt;s:Application&gt;</code> at runtime? I've seen examples of how to do this with the MX version of the Application component, but not the spark version.</p>
  
  <p>I cannot bind the <code>backgroundColor</code> property to a variable and modify that. However, I am thinking that I should use the <code>styleManager</code> property of the component to perform this change.</p>
  
  <p>Could anyone explain how to do this?</p>
  
  <p>Thank you for your time.</p>