Sets the **Script_Editor_Output_plainTextEdit** Widget.

def __Script_Editor_Output_plainTextEdit_set_ui(self):
        """
        Sets the **Script_Editor_Output_plainTextEdit** Widget.
        """

        self.Script_Editor_Output_plainTextEdit.setReadOnly(True)
        self.Script_Editor_Output_plainTextEdit.highlighter = umbra.ui.highlighters.DefaultHighlighter(
            self.Script_Editor_Output_plainTextEdit.document(),
            LOGGING_LANGUAGE.rules,
            LOGGING_LANGUAGE.theme)

        self.Script_Editor_Output_plainTextEdit.setTabStopWidth(self.__indent_width)
        self.Script_Editor_Output_plainTextEdit.setWordWrapMode(QTextOption.NoWrap)
        if platform.system() == "Windows" or platform.system() == "Microsoft":
            fontFamily, fontSize = self.__default_fonts_settings["Windows"]
        elif platform.system() == "Darwin":
            fontFamily, fontSize = self.__default_fonts_settings["Darwin"]
        elif platform.system() == "Linux":
            fontFamily, fontSize = self.__default_fonts_settings["Linux"]
        font = QFont(fontFamily)
        font.setPointSize(fontSize)
        self.Script_Editor_Output_plainTextEdit.setFont(font)
        self.Script_Editor_Output_plainTextEdit.contextMenuEvent = \
            self.__Script_Editor_Output_plainTextEdit_contextMenuEvent
        self.__Script_Editor_Output_plainTextEdit_set_default_view_state()