code: def size_to_content(self):
          
          new_sizing = self.copy_sizing()
          new_sizing.minimum_height = 0
          new_sizing.maximum_height = 0
          axes = self.__axes
          if axes and axes.is_valid:
              if axes.x_calibration and axes.x_calibration.units:
                  new_sizing.minimum_height = self.font_size + 4
                  new_sizing.maximum_height = self.font_size + 4
          self.update_sizing(new_sizing)
docs: Size the canvas item to the proper height.