change color wallet default

src/js/controllers/index.js

@@ -264,7 +264,7 @@ angular.module('copayApp.controllers').controller('indexController', function($r
   self.updateColor = function() {
     var config = configService.getSync();
     config.colorFor = config.colorFor || {};
-    self.backgroundColor = config.colorFor[self.walletId] || '#1ABC9C';
+    self.backgroundColor = config.colorFor[self.walletId] || '#2C3E50';
     var fc = profileService.focusedClient;
     fc.backgroundColor = self.backgroundColor;
   };

src/js/controllers/preferencesColor.js

@@ -19,7 +19,7 @@ angular.module('copayApp.controllers').controller('preferencesColorController',
 
     var config = configService.getSync();
     config.colorFor = config.colorFor || {};
-    this.color = config.colorFor[walletId] || '#1ABC9C';
+    this.color = config.colorFor[walletId] || '#2C3E50';
 
     this.save = function(color) {
       var self = this;

src/js/controllers/sidebar.js

@@ -41,7 +41,7 @@ angular.module('copayApp.controllers').controller('sidebarController',
           n: c.n,
           name: c.walletName,
           id: c.walletId,
-          color: config.colorFor[c.walletId] || '#1ABC9C',
+          color: config.colorFor[c.walletId] || '#2C3E50',
         };
       });
       self.wallets = lodash.sortBy(ret, 'walletName');