Board Thread:Support Requests - Getting Technical/@comment-30509676-20181202020115/@comment-34858178-20181202114239

I think they applied CSS as you can see the source here.

/* Master Infobox Theming */ .portable-infobox .pi-border-color { border-color: grey; } .portable-infobox .pi-data { background-color: #d62424; } .portable-infobox .pi-image-collection-tabs { background-color: #db0505; } ul.pi-image-collection-tabs li { border: 1px solid #a60a0a; } .pi-image { text-align: center; background-color: lightgrey; } .portable-infobox { background: 1px solid grey; } Templates also.