Make Return Labels stand out as RETURN LABELS to avoid mixup in shipping

[nwmhloans]

The problem when using a Pay-On-Use return label that gets included with the outbound shipment, is that the pay-on-use return label can get accidentally switched and used as the outbound label because they look virtually the same. It would be great if there was an option to customize the return label to make it stand out more as a return label to avoid the mix up when shipping. For example having "RETURN LABEL" at the bottom of the label in BIG BOLD type. By having this option it would: * Reduce wasted postage by accidentally sending package right back to the sender. * Reduce Delays in getting the package to the end customer.