Put carrier logos on white background

www/assets/js/track.js

@@ -82,7 +82,7 @@ function trackOpenAsync( {to, resolve, reject}) {
                     }
                     if (resp.info.carrier) {
                         if (resp.info.carrier_logo) {
-                            context.info.push({label: "Carrier", value: "<img style=\"height: 2em; padding: 0.667em; max-width: 80%;\" src=\"" + resp.info.carrier_logo + "\" />"});
+                            context.info.push({label: "Carrier", value: "<img style=\"height: 2em; padding: 0.667em; max-width: 80%; background-color: white; border-radius: 0.25em; margin-top: 0.5em;\" src=\"" + resp.info.carrier_logo + "\" />"});
                         } else {
                             context.info.push({label: "Carrier", value: resp.info.carrier});
                         }