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.

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#include <QApplication>

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#include "mainform.h"

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int main(int argc, char *argv[])

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{

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    QApplication app(argc, argv);

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    MyWindow *mainWin = new MyWindow;

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    mainWin->show();

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    return app.exec();

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}