Bolt\Provider\ThumbnailsServiceProvider::register PHP Метод

    public function register(Application $app)
    {
        if (!isset($app['thumbnails'])) {
            $app->register(new Thumbs\ServiceProvider());
        }
        $app['thumbnails.filesystems'] = ['files', 'themes'];
        $app['thumbnails.save_files'] = $app['config']->get('general/thumbnails/save_files');
        $app['thumbnails.filesystem_cache'] = $app->share(function ($app) {
            if ($app['thumbnails.save_files'] === false) {
                return null;
            }
            if (!$app['filesystem']->hasFilesystem('web')) {
                return null;
            }
            return $app['filesystem']->getFilesystem('web');
        });
        $app['thumbnails.caching'] = $app['config']->get('general/caching/thumbnails');
        $app['thumbnails.cache'] = $app->share(function ($app) {
            if ($app['thumbnails.caching'] === false) {
                return null;
            }
            return $app['cache'];
        });
        $app['thumbnails.default_image'] = $app->share(function ($app) {
            $matcher = new Matcher($app['filesystem'], ['view', 'app', 'themes', 'files']);
            try {
                return $matcher->getImage($app['config']->get('general/thumbnails/notfound_image'));
            } catch (FileNotFoundException $e) {
                return new Image();
            }
        });
        $app['thumbnails.error_image'] = $app->share(function ($app) {
            $matcher = new Matcher($app['filesystem'], ['view', 'app', 'themes', 'files']);
            try {
                return $matcher->getImage($app['config']->get('general/thumbnails/error_image'));
            } catch (FileNotFoundException $e) {
                return new Image();
            }
        });
        $app['thumbnails.default_imagesize'] = $app['config']->get('general/thumbnails/default_image');
        $app['thumbnails.cache_time'] = $app['config']->get('general/thumbnails/browser_cache_time');
        $app['thumbnails.limit_upscaling'] = !$app['config']->get('general/thumbnails/allow_upscale', false);
        $app['thumbnails.only_aliases'] = $app['config']->get('general/thumbnails/only_aliases', false);
        $app['thumbnails.aliases'] = $app['config']->get('theme/thumbnails/aliases', []);
        ImageResource::setNormalizeJpegOrientation($app['config']->get('general/thumbnails/exif_orientation', true));
        ImageResource::setQuality($app['config']->get('general/thumbnails/quality', 80));
    }