Bugfixes

Fixed opacity for modal arrow
Fixed empty last name during registration

app/css/desktop.css

@@ -1586,7 +1586,7 @@ div.im_dialog_photo .peer_initials {
   background-size: 40px 200px;
   width: 16px;
   height: 24px;
-  opacity: 0.3;
+  opacity: 0.15;
   position: absolute;
   top: 50%;
   pointer-events: none;

app/js/controllers.js

@@ -273,8 +273,8 @@ angular.module('myApp.controllers', ['myApp.i18n'])
       if (forceSignUp) {
         method = 'auth.signUp';
         angular.extend(params, {
-          first_name: $scope.credentials.first_name,
-          last_name: $scope.credentials.last_name
+          first_name: $scope.credentials.first_name || '',
+          last_name: $scope.credentials.last_name || ''
         });
       }