code: protected void loadBackground()
      {
          CSSProperty.BackgroundColor bg = style.getProperty("background-color");
          if (bg == CSSProperty.BackgroundColor.color)
          {
              TermColor bgc = style.getSpecifiedValue(TermColor.class, "background-color");
              if (bgc.isTransparent())
                  bgcolor = null;
              else
                  bgcolor = CSSUnits.convertColor(bgc.getValue());
          }
          else
              bgcolor = null;
  
          bgimages = loadBackgroundImages(style);
      }
docs: Loads the background information from the style