Updates frozen cell widget

        Parameters
        ----------

        frozen: Bool or string
        \tUntoggled iif False

def _update_frozencell(self, frozen):
        """Updates frozen cell widget

        Parameters
        ----------

        frozen: Bool or string
        \tUntoggled iif False

        """

        toggle_state = frozen is not False

        self.ToggleTool(wx.FONTFLAG_MASK, toggle_state)