def _init_icon(): """Initialize the icon of qutebrowser.""" icon = QIcon() for size in (16, 24, 32, 48, 64, 96, 128, 256, 512): filename = ':/icons/qutebrowser-{}x{}.png'.format(size, size) pixmap = QPixmap(filename) qtutils.ensure_not_null(pixmap) icon.addPixmap(pixmap) qtutils.ensure_not_null(icon) qApp.setWindowIcon(icon)