anchor.diff:              new ListTile(
                   dense: true,
                   title: new Text("Open CodeWars",
  -                    style: new TextStyle(color: _textColor)),
  +                    style: new TextStyle(
  +                        fontSize: 14.0,
  +                        color: _textColor)),
                   onTap: () => _viewWeb('https://www.codewars.com/')),
             ])
       ];
  
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(
            title: new Text("Change user name",
                style: new TextStyle(
                    fontSize: 16.0,
                    color: _textColor)),
            subtitle: new Text(
                _user?.username ?? "Unknown",
                style: new TextStyle(
                    fontSize: 14.0,
                    color: _textColor)),
            dense: true,
            trailing: new IconButton(
  