docs: 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