anchor.diff:          style: TextStyle(
               letterSpacing: ScalingUtility.safeBlockVertical * 3,
               color: Colors.white,
  -            fontSize: 1),
  +            fontSize: 0),
         );
       } else {
         barcodeWithText = BarcodeWidget(
           barcode: Barcode.codabar(),
           data: cardNumber,
           width: ScalingUtility.safeBlockHorizontal * 50,
  -        height: 40,
  +        height: ScalingUtility.safeBlockVertical * 4.45,
           style: TextStyle(
               letterSpacing: ScalingUtility.safeBlockHorizontal * 1.5,
  -            fontSize: 1,
  +            fontSize: 0,
               color: Colors.white),
         );
       }
  
positive.code:   return currentTheme.brightness == Brightness.dark
        ? EdgeInsets.all(5)
        : EdgeInsets.all(0);
  }
  
  /// Determine the background color of barcode with theme
  
negative.code:           textAlign: TextAlign.left,
            style: TextStyle(
              fontWeight: FontWeight.bold,
              fontSize: ScalingUtility.safeBlockHorizontal * 2.5,
              color: decideColor(Theme.of(context)),
            ),
          ),
  