code: public void setDefaultTextFontFamilyName(String[] faces) {
  		if ((faces != null) && (faces.length > 0))
  			m_defaultTextFontFamilyNames = faces;
  		else
  			m_defaultTextFontFamilyNames = new String[] { "Dialog" };
  		notifyListeners();
  	}
docs: Set the default font faces, in order of preference.
  
  If font face is not set for a field, it will use the first default font
  face available
  
  @param faces
  e.g. new String[] { "Dialog", "Arial" }