cardWidget.dart

...
 _buildName() => Row(
        mainAxisAlignment: MainAxisAlignment.center,
        children: <Widget>[
          Column(
            crossAxisAlignment: CrossAxisAlignment.start,
            children: <Widget>[
              Text(
                'CARD HOLDER',
                style: TextStyle(
                    fontSize: 12,
                    color: Colors.white,
                    fontWeight: FontWeight.w200),
              ),
              yMargin5,
              Text(
                '$name',
                style: TextStyle(
                    color: Colors.white,
                    fontFamily: 'OCRAEXT',
                    fontSize: 14.4,
                    fontWeight: FontWeight.w600),
              ),
            ],
          )
        ],
      );
...