QGroupBox#actor1::indicator {
    background-image: url(:/actor1icon);
    background-position: top left;
    background-repeat: no-repeat;
    width: 16px;
    height: 14px;
}

QGroupBox#actor2::indicator {
    background-image: url(:/actor2icon);
    background-position: top left;
    background-repeat: no-repeat;
    width: 16px;
    height: 14px;
}

QGroupBox#actor3::indicator {
    background-image: url(:/actor3icon);
    background-position: top left;
    background-repeat: no-repeat;
    width: 16px;
    height: 14px;
}

QGroupBox#actor4::indicator {
    background-image: url(:/actor4icon);
    background-position: top left;
    background-repeat: no-repeat;
    width: 16px;
    height: 14px;
}