Digital-Theme, converted+fixed as requested by koda, sorry I had no choice. He would had been all "couch" again if I hadn't done this for him :(
XD
#include <QtGui/QApplication>
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}