The rottags key alone now toggles hog tags; preecise+rottags is used to cycle tags I figured that the toggling hog tags on and off is a bit more important than changing the tag types, because you sometimes run into a hog whose tags block your view, so a 1-key press is helpful. On the other hand, you probably only want to changing the tag types in the game once (if at all).

#include <QGuiApplication>
#include <QQmlApplicationEngine>

int main(int argc, char *argv[])
{
  QCoreApplication::setAttribute(Qt::AA_EnableHighDpiScaling);
  QGuiApplication app(argc, argv);

  QQmlApplicationEngine engine;
  engine.load(QUrl(QLatin1String("qrc:/main.qml")));
  if (engine.rootObjects().isEmpty())
    return -1;

  return app.exec();
}