def setDisabledColor(self, color):
        """
        Sets the disabled color used when drawing this node as disabled.
        
        :param      color | <QColor>
        """
        color = QColor(color)
        if self._palette is None:
            self._palette = XNodePalette(self._scenePalette)
        
        self._palette.setColor(self._palette.Disabled,
                               self._palette.NodeBackground,
                               color)
        self._palette.setColor(self._palette.Disabled,
                               self._palette.NodeAlternateBackground,
                               color.darker(105))
        self.setDirty()