SUP-2250, Grey color for handle should be more darker than current one.

app/filters/rating-color.filter.js

@@ -10,7 +10,7 @@
         if (typeof rating === 'string')
           rating = parseInt(rating.replace(",", ""));
         colors = colors.filter(function(color) {
-          return rating >= color.start && rating <= color.end;
+          return rating !== null && rating >= color.start && rating <= color.end;
         });
         return colors[0] && colors[0].color || 'black';
       }

app/services/profile.service.js

@@ -286,7 +286,7 @@
     }
 
     function getUserHandleColor(profile) {
-      var rating = _.get(profile, 'maxRating.rating', 0);
+      var rating = _.get(profile, 'maxRating.rating', null);
       return $filter('ratingColor')(rating);
     }