Double click on Barcode which is on the Label and change your Barcode Properties using Value, Size, Font and Color.
You can also write Text on your Label using Text Properties.
In Quick Barcode Mode, change header color and footer Color of the barcode. Set Barcode Module size and Encoding mode.
Go to the print mode in Barcode Designing View, select print mode either Pre Define Label Stock or Manual, then click on print button.