docs: def element_screen_center(self, element):
          """
          :returns: The center point of the element.
          :rtype: class:`dict` with the field "left" set to the X
                  coordinate and the field "top" set to the Y
                  coordinate.
  
          """
          pos = self.element_screen_position(element)
          size = element.size
          pos["top"] += int(size["height"] / 2)
          pos["left"] += int(size["width"] / 2)
          return pos