def choose_colour(self, title="<STR_LIT>", **kwargs):
return_data = self._run_zenity(title, ["<STR_LIT>"], kwargs)<EOL>if return_data.successful:<EOL><INDENT>converted_colour = ColourData.from_zenity_tuple_str(return_data.data)<EOL>return DialogData(return_data.return_code, converted_colour)<EOL><DEDENT>else:<EOL><INDENT>return DialogData(return_data.return_code, None)<EOL><DEDENT>
Show a Colour Chooser dialog

Usage: C{dialog.choose_colour(title="Select Colour")}

@param title: window title for the dialog
@return:
@rtype: C{DialogData(int, Optional[ColourData])}