Hello. I want to make different icons for checked and unchecked state of QPushButton. The code:
Qt Code: 
  1. MainWindow::MainWindow(QWidget *parent)
  2.     : QMainWindow(parent)
  3. {
  4.     QBoxLayout *layout1 = new QVBoxLayout();
  5.  
  6.     QWidget *widget = new QWidget(this);
  7.     widget->setLayout(layout1);
  8.     setCentralWidget(widget);
  9.  
  10.     QIcon icon1;
  11.     icon1.addFile(QStringLiteral(":/norecord.png"), QSize(), QIcon::Normal, QIcon::Off);
  12.     icon1.addFile(QStringLiteral(":/active.png"), QSize(), QIcon::Normal, QIcon::On);
  13.  
  14.     QPushButton *button1 = new QPushButton(this);
  15.     button1->setCheckable(true);
  16.     button1->setText("Sample Text");
  17.     button1->setIcon(icon1);
  18.     layout1->addWidget(button1);
  19.  
  20. }
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I use Qt 5.15.2. This code works in Windows, but not in Linux and Android, there always shows an icon for a unchecked state.
On Qt 5.11.3 and earlier versions it worked.

As far as I could understand, the problem causes this code in the Fusion style, file src/widgets/styles/qfusionstyle.cpp:
Qt Code: 
  1. case CE_PushButtonLabel:
  2.         if (const QStyleOptionButton *button = qstyleoption_cast<const QStyleOptionButton *>(option)) {
  3.             QStyleOptionButton b(*button);
  4.             // no PM_ButtonShiftHorizontal and PM_ButtonShiftVertical for fusion style
  5.             b.state &= ~(State_On | State_Sunken);
  6.             QCommonStyle::drawControl(element, &b, painter, widget);
  7.         }
  8.         break;
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I want to ask: Is it a correct code? Is it a bug or style feature?