stylesheet

[THRESHE]

Hi. I applied in side qss file as

QLabel
{
QFrame::setFrameShadow (QFrame::Sunken)
}
still same problem.

It may sound rude but are you familiar with Qt style sheets and Qt itself ?
What I wrote means that you should literally write in your program code. For instance

QLabel myLabel;
myLabel.setFrameShadow (QFrame::Sunken);

QLabel myLabel;
myLabel.setFrameShadow (QFrame::Sunken);

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I hope it helps