public function getDefaultTagNames()
    {
        return [
            self::TAG_NAME_B,
            self::TAG_NAME_I,
            self::TAG_NAME_S,
            self::TAG_NAME_U,
            self::TAG_NAME_CODE,
            self::TAG_NAME_EMAIL,
            self::TAG_NAME_URL,
            self::TAG_NAME_IMG,
            self::TAG_NAME_LIST,
            self::TAG_NAME_LI_STAR,
            self::TAG_NAME_LI,
            self::TAG_NAME_QUOTE,
            self::TAG_NAME_YOUTUBE,
            self::TAG_NAME_FONT,
            self::TAG_NAME_SIZE,
            self::TAG_NAME_COLOR,
            self::TAG_NAME_LEFT,
            self::TAG_NAME_CENTER,
            self::TAG_NAME_RIGHT,
            self::TAG_NAME_SPOILER,
        ];
    }