code: public void setColoringEnable(boolean coloring)
    {
      m_enableColoring = coloring;
      if (m_enableColoring)
        m_refresher.redrawTune();
      else
      {
          ((DefaultStyledDocument)getDocument()).setCharacterAttributes(
      0,getDocument().getEndPosition().getOffset(),m_defaultStyle, true);
        //setSelectedTextColor(SELECTION_FOREGROUND_COLOR);
        //setSelectionColor(SELECTION_BACKGROUND_COLOR);
      }
    }
docs: Enables/disables coloring of the text.
  @param coloring <TT>true</TT> if text coloring should be enabled,
  <TT>false</TT> otherwise.
  @see #isColoringEnabled()