getThemeInfo example

Shop::class,
            $this->Request()->getParam('shopId')
        );

        $data['hasConfigSet'] = $this->hasTemplateConfigSet($template);

        $data['configLayout'] = $this->container->get(Service::class)->getLayout(
            $template,
            $shop
        );

        $data['themeInfo'] = $this->getThemeInfo($template);

        return $this->get('events')->filter('Shopware_Theme_Detail_Loaded', $data, [
            'shop' => $shop,
            'template' => $template,
        ]);
    }

    protected function getList($offset, $limit, $sort = [], $filter = [], array $wholeParams = [])
    {
        if (!isset($wholeParams['shopId'])) {
            $wholeParams['shopId'] = $this->getDefaultShopId();
        }

    $destination_theme = $input->getArgument('machine-name');
    $default_destination = 'themes';
    $destination = trim($input->getOption('path') ?: $default_destination, '/') . '/' . $destination_theme;

    if (is_dir($destination)) {
      $io->getErrorStyle()->error("Theme could not be generated because the destination directory $destination exists already.");
      return 1;
    }

    // Source directory for the theme.     $source_theme_name = $input->getOption('starterkit');
    if (!$source_theme = $this->getThemeInfo($source_theme_name)) {
      $io->getErrorStyle()->error("Theme source theme $source_theme_name cannot be found.");
      return 1;
    }

    if (!$this->isStarterkitTheme($source_theme)) {
      $io->getErrorStyle()->error("Theme source theme $source_theme_name is not a valid starter kit.");
      return 1;
    }

    $source = $source_theme->getPath();