client/securedrop_client/gui/auth/sign_in/error_bar.css

QWidget {
    font-family: 'Source Sans Pro';
}

#LoginErrorBar QWidget {
    background-color: #ce0083;
}

#LoginErrorBar_icon {
    color: #fff;
}

#LoginErrorBar_status_bar {
    font-family: 'Montserrat';
    font-weight: 500;
    font-size: 12px;
    color: #fff;
}