Strip invalid PNG profiles from PNGs Bad PNGs caused a few annoying warnings like “libpng warning: iCCP: known incorrect sRGB profile”. Command used: pngcrush -rem gAMA -rem cHRM -rem iCCP -rem sRGB Note that many images have “@2x” in their name, this probably explains why they have been overlooked before.

#include <QApplication>

#include "mainform.h"

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    MyWindow *mainWin = new MyWindow;
    mainWin->show();
    return app.exec();
}