If you want to change any of the styling of the region use the following as a guide:
atom-text-editor .highlights {
// Box
.highlight-selected .region {
border-color: #ddd;
border-radius: 3px;
border-width: 1px;
border-style: solid;
}
// Background (set in settings)
.highlight-selected.background .region {
background-color: rgba(155, 149, 0, 0.6);
}
// Light theme box (set in settings)
.highlight-selected.light-theme .region {
border-color: rgba(255, 128, 64, 0.4);
}
// Light theme background (set in settings)
.highlight-selected.light-theme.background .region {
background-color: rgba(255, 128, 64, 0.2);
}
}
// If you have the Scroll Marker package installed https://atom.io/packages/scroll-marker
// These are the colours that will be shown in the scroller
.highlight-selected-marker-layer.scroll-marker-layer {
.scroll-marker {
background-color: #ffff00;
}
}
.highlight-selected-selected-marker-layer.scroll-marker-layer {
.scroll-marker {
background-color: #f71010;
}
}