anchor.diff:        new ListTile(
             title: new Text("Change user name",
                 style: new TextStyle(
  -                  fontSize: 20.0,
  +                  fontSize: 16.0,
                     color: _textColor)),
             subtitle: new Text(
                 _user?.username ?? "Unknown",
                 style: new TextStyle(
  -                  fontSize: 16.0,
  +                  fontSize: 14.0,
                     color: _textColor)),
             dense: true,
             trailing: new IconButton(
  
positive.code:       new ExpansionTile(
            title: new Text("App info",
                style: new TextStyle(
                    color: _textColor)),
            children: [
              new ListTile(
                  dense: true,
                  title: new Text("Source on GitHub",
                      style: new TextStyle(color: _textColor)),
                  onTap: () => _viewWeb('https://github.com/ice1000/code_wars_android')),
              new ListTile(
                  dense: true,
                  title: new Text("License",
                      style: new TextStyle(color: _textColor)),
                  onTap: () {
                    showDialog(
                        context: context,
  
negative.code:             new ListTile(
                  dense: true,
                  title: new Text("Open CodeWars",
                      style: new TextStyle(
                          fontSize: 14.0,
                          color: _textColor)),
                  onTap: () => _viewWeb('https://www.codewars.com/')),
            ])
      ];
  