Qt5 – setting background color to QPushButton and QCheckBox

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I had the same issue, but finally got this to work. I’m using Qt 5 with the Fusion color theme:

QPalette pal = button->palette();
pal.setColor(QPalette::Button, QColor(Qt::blue));
button->setAutoFillBackground(true);
button->setPalette(pal);
button->update();

Try these commands in the exact order as above, and if that still doesn’t work, set your theme to Fusion and try again.

Good luck!

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