public static function addHaloColors(colors:Object, themeColor:uint, fillColor0:uint, fillColor1:uint):void
   Calculates colors that are used by components that 
   support the Halo theme, such as the colors of beveled
   edges.  This method uses the themeColor and
   fillColors properties to calculate its
   colors.
  
   
Parameters
 | colors:Object — The object on which the calculated color
   values are stored.  
   
    | 
|   | 
 | themeColor:uint — The value of the themeColor
   style property.
  
   | 
|   | 
 | fillColor0:uint — The start color of a fill.
   | 
|   | 
 | fillColor1:uint — The end color of a fill.
   | 
 
public static function getCacheKey(... colors):String
   Returns a unique hash key based on the colors that are
   passed in. This key is used to store the calculated colors
   so they only need to be calculated once.
     
Parameters
 | ... colors — An arbitrary number of RGB colors expressed
   as uint values (for example, 0xFF0000).
   | 
Returns