code: public function handle(ModelToLabelEvent $event)
      {
          if (!$this->wantToHandle($event)) {
              return;
          }
  
          $model     = $event->getModel();
          $tableName = $model->getProperty('tableName');
  
          if (!($model && !empty($tableName) && $this->connection->getSchemaManager()->tablesExist([$tableName]))) {
              return;
          }
  
          // Keep the previous label.
          $label = vsprintf($event->getLabel(), $event->getArgs());
          $image = ((bool) $model->getProperty('translated')) ? 'locale.png' : 'locale_1.png';
          $count = $this->connection->createQueryBuilder()
              ->select('COUNT(*) AS itemCount')
              ->from($tableName)
              ->execute()
              ->fetchColumn();
  
          switch ($count) {
              case 0:
                  $transId = 'tl_metamodel.itemFormatCount.0';
                  break;
              case 1:
                  $transId = 'tl_metamodel.itemFormatCount.1';
                  break;
              default:
                  $transId = 'tl_metamodel.itemFormatCount.2:';
          }
  
          $event
              ->setLabel('
      <span class="name">
        <img src="bundles/metamodelscore/images/icons/%1$s" /> %2$s
        <span style="color:#b3b3b3; padding-left:3px">(%3$s)</span>
        <span style="color:#b3b3b3; padding-left:3px">[%4$s]</span>
      </span>')
              ->setArgs([
                  $image,
                  $label,
                  $tableName,
                  $this->translator->trans($transId, [$count], 'contao_tl_metamodel')
              ]);
      }
docs: Render the html for the input screen condition.
  
  @param ModelToLabelEvent $event The event.
  
  @return void