Initializes the Component ui.

        :return: Method success.
        :rtype: bool

def initialize_ui(self):
        """
        Initializes the Component ui.

        :return: Method success.
        :rtype: bool
        """

        LOGGER.debug("> Initializing '{0}' Component ui.".format(self.__class__.__name__))

        umbra.ui.common.set_toolBox_height(self.Preferences_Manager_toolBox)

        self.__Logging_Formatters_comboBox_set_ui()
        self.__Verbose_Level_comboBox_set_ui()
        self.__Restore_Geometry_On_Layout_Change_checkBox_set_ui()

        # Signals / Slots.
        self.__engine.verbosity_level_changed.connect(self.__engine__verbosity_level_changed)
        self.Logging_Formatters_comboBox.activated.connect(self.__Logging_Formatters_comboBox__activated)
        self.Verbose_Level_comboBox.activated.connect(self.__Verbose_Level_comboBox__activated)
        self.Restore_Geometry_On_Layout_Change_checkBox.stateChanged.connect(
            self.__Restore_Geometry_On_Layout_Change_checkBox__stateChanged)

        self.initialized_ui = True
        return True