def set_hue(self, value):
        """
        Change hue.

        :param value: new hue value (between 0 and 360)
        :type value: int
        """
        old = self._hue
        self._hue = value
        if value != old:
            self._fill()
            self.event_generate("<<ColorChanged>>")
Change hue.

        :param value: new hue value (between 0 and 360)
        :type value: int