:root{
/* Radii read off the iOS app: chips and buttons are full pills, list cards
   20px, the photographic hero card 28px, thumbnails 12px. */
--radius-sharp:0px;
--radius-xs:6px;
--radius-sm:10px;
--radius-thumb:12px;
--radius-md:14px;
--radius-lg:20px;
--radius-xl:28px;
--radius-pill:999px;
--border-width:1px;
--border-width-strong:1.5px;
}