docs: public Color getBackgroundColor()
      {
          if (m_colorBackground == null)
          {
              String strBackgroundColor = this.getProperty(Params.BACKGROUNDCOLOR);   // Resource file
              if ((strBackgroundColor != null) && (strBackgroundColor.length() > 0))
                  m_colorBackground = BaseApplet.nameToColor(strBackgroundColor);
          }
          if (m_colorBackground == null)
              m_colorBackground = SystemColor.window;     // Default color
          return m_colorBackground;
      }