Adds first regression and Qt6-migration-quality accessing results

qt6-after/qt6-migrated-legatus/Lts/Application/OpApp/main.cpp

@@ -192,7 +192,7 @@ int main(int argc, char **argv) // TODO: json strings to lower
   NGLApplication app(argc, argv);
   app.createLogger("opApp");
   QApplication::setQuitOnLastWindowClosed(false); // we are cool enough to handle it ourselves 8)
-  QApplication::setAttribute(Qt::AA_UseHighDpiPixmaps);
+  // Qt::AA_UseHighDpiPixmaps: no-op since Qt6 (high-DPI pixmaps are always enabled)
   QNetworkProxy::setApplicationProxy(QNetworkProxy()); // do NOT use proxies anywhere!
 
   NGL::LoggerHandler *lh = NGL::LoggerHandler::getLoggerHandler();