public function open()
    {
        parent::open();
        $this->tagFormats = [
            'emergency' => self::FG_BLACK . self::BG_RED . '|' . self::END,
            'alert' => self::FG_BLACK . self::BG_YELLOW . '|' . self::END,
            'critical' => self::FG_BLACK . self::BG_CYAN . '|' . self::END,
            'error' => self::FG_RED . '|' . self::END,
            'warning' => self::FG_YELLOW . '|' . self::END,
            'notice' => self::FG_WHITE . '|' . self::END,
            'info' => self::FG_GREEN . '|' . self::END,
            'debug' => self::FG_BLUE . '|' . self::END,
        ];
    }