anchor.diff:  
         Column(children: <Widget>[
           Text(
  -          "(tap for easier scanning)"
  +          "(tap for easier scanning)",
  +          textAlign: TextAlign.left,
  +          style: TextStyle(
  +            fontWeight: FontWeight.bold,
  +            fontSize: 10.0,
  +            color: Colors.black45,
  +        ),
           ),
           Container(
             child: barcodeWithText,
  
positive.code:       barcodeWithText = BarcodeWidget(
        barcode: Barcode.codabar(),
      data: "A" + cardNumber + "B",
      width: SizeConfig.safeBlockHorizontal * 70 ,
      height: 50,
          style: TextStyle(
              letterSpacing: SizeConfig.safeBlockHorizontal * 1.5
          ),
      );
      }
  
negative.code: 
            FlatButton(
              child: returnBarcodeContainer(barcodeModel.barCode.toString(), false, context),
              padding: EdgeInsets.all(0),
              onPressed: () {
                createAlertDialog(context,
                    returnBarcodeContainer(barcodeModel.barCode.toString(), true, context));
  