    def _parse_option(self, option):
        """
        Parse a single option for ColouredText.

        :param option: the option to parse
        :returns: the option parsed and converted to ColouredText.
        """
Parse a single option for ColouredText.

:param option: the option to parse
:returns: the option parsed and converted to ColouredText.
asciimatics/widgets/baselistbox.py