code: def set_hsv(self, sel_color):
          
          width = self.winfo_width()
          height = self.winfo_height()
          h, s, v = sel_color
          self.set_hue(h)
          x = v / 100.
          y = (1 - s / 100.)
          self.coords('cross_h', 0, y * height, width, y * height)
          self.coords('cross_v', x * width, 0, x * width, height)
docs: Put cursor on sel_color given in HSV.
  
          :param sel_color: color in HSV format
          :type sel_color: sequence(int)