    def __init__(self, height, width):
        """
        :param height: The height of the screen buffer to be used.
        :param width: The width of the screen buffer to be used.
        """
        # Colours and unicode rendering are up to the user.  Pick defaults that won't limit them.
        super().__init__(height, width, None, 256, True)
:param height: The height of the screen buffer to be used.
:param width: The width of the screen buffer to be used.
asciimatics/screen.py