protected void initDefaultStyle() {
      
      if(this.styleMap == null) {
         this.styleMap = DefaultStyle.getDefaults();
      }
      
      //background
      if(!styleMap.containsKey(BACKGROUND_KEY))
         styleMap.put(BACKGROUND_KEY, new Color(209,215,226));   
      
      //header title font
      if(!styleMap.containsKey(HEADER_TITLE_FONT_KEY))
         styleMap.put(HEADER_TITLE_FONT_KEY, styleMap.getFont(DefaultStyle.LABEL_FONT_KEY));   
      
      //header title color
      if(!styleMap.containsKey(HEADER_TITLE_COLOR_KEY))
         styleMap.put(HEADER_TITLE_COLOR_KEY, new Color(40,40,40));
      
      //header title bevel color
      if(!styleMap.containsKey(HEADER_TITLE_BEVEL_COLOR_KEY))
         styleMap.put(HEADER_TITLE_BEVEL_COLOR_KEY, new Color(196,196,196));
      
      //header border color
      if(!styleMap.containsKey(HEADER_BORDER_COLOR_KEY))
         styleMap.put(HEADER_BORDER_COLOR_KEY, styleMap.getFont(DefaultStyle.CTRL_BORDER_COLOR_KEY));
      
      //header top gradient
      if(!styleMap.containsKey(HEADER_TOP_GRADIENT_KEY))
         styleMap.put(HEADER_TOP_GRADIENT_KEY, new Color(196,196,196));
      
      //header bottom gradient
      if(!styleMap.containsKey(HEADER_BOTTOM_GRADIENT_KEY))
         styleMap.put(HEADER_BOTTOM_GRADIENT_KEY, new Color(153,153,153));
   
   }