Webmozart\Console\UI\Style\TableStyle::borderless PHP Method

    public static function borderless()
    {
        if (!self::$borderless) {
            self::$borderless = new static();
            self::$borderless->borderStyle = BorderStyle::none();
            self::$borderless->borderStyle->setLineHCChar('=');
            self::$borderless->borderStyle->setLineVCChar(' ');
            self::$borderless->borderStyle->setCrossingCChar(' ');
        }
        return clone self::$borderless;
    }

 public function handleList(Args $args, IO $io)
 {
     $table = new Table(TableStyle::borderless());
     foreach ($this->installerManager->getInstallerDescriptors() as $descriptor) {
         $className = $descriptor->getClassName();
         if (!$args->isOptionSet('long')) {
             $className = StringUtil::getShortClassName($className);
         }
         $parameters = array();
         foreach ($descriptor->getParameters() as $parameterName => $parameter) {
             if (!$parameter->isRequired()) {
                 $parameterName .= '=' . StringUtil::formatValue($parameter->getDefaultValue());
             }
             $parameters[] = $parameterName;
         }
         $description = $descriptor->getDescription();
         if ($parameters) {
             // non-breaking space
             $description .= ' <c1>(' . implode(", ", $parameters) . ')</c1>';
         }
         $table->addRow(array('<u>' . $descriptor->getName() . '</u>', '<c1>' . $className . '</c1>', $description));
     }
     $table->render($io);
     return 0;
 }