html {
    background: url(https://x.boardgamearena.net/data/themereleases/221026-1000/img/layout/back-main.jpg), #f2f2f2;
}

.reveal-autofit-zones .bga-autofit {
    outline: 1px dashed orange;

}

.reveal-autofit-zones .bga-not-autofit {
    outline: 1px dashed red;
}

.reveal-autofit-zones .bga-autofit__inner {
    background: rgba(128, 128, 255, 0.3);
}