With the latest beta, this is possible in the setlist view as well:
@keyframes button-looping {
from {
background-color: #2f855a;
}
to {
background-color: #48bb78;
}
}
.performance .controls .loop.active,
.playback-controls .loop.active {
/* change the duration here if you'd like the animation to be slower */
animation: button-looping 0.3s alternate linear infinite;
}
.performance .controls .loop.active svg,
.playback-controls .loop.active svg {
color: #fff;
}
This shows the high-contrast loop button in both the setlist and performance view.