backup.

lib/widgets/general/navigationbar_logo.dart

@@ -1,11 +1,13 @@
 
 import 'package:flutter/material.dart';
 
+import '../../constants.dart';
+
 class NavigationBarLogo extends StatelessWidget {
   const NavigationBarLogo({Key key}) : super(key: key);
 
   static const IconData logoData = IconData(
-      0xe800,
+      Constants.FONT_WISETRONIC,
       fontFamily: 'wisetronic',
       fontPackage: null
   );