docs: def setDisabledBorderColor( self ):
          """
          Returns the base color for this node.
          
          :return     <QColor>
          """
          color = QColor(color)
          if self._palette is None:
              self._palette = XNodePalette(self._scenePalette)
          
          self._palette.setColor(self._palette.Disabled,
                                 self._palette.NodeBorder,
                                 color)
          self.setDirty()