Thank you for the prompt response, LOUIE1.
As mentioned by my colleague @FritzF, this feature is only available in QuickBooks Desktop Enterprise. While the option to print invoice with shading is not yet available in QuickBooks Desktop Premier, I encourage you sending this idea to our product developers to include this enhancement in the future. I'll make sure to do the same thing on my end.
To send feedback, here's how:
We look forward to seeing this feature soon. Reach back to me if you have other questions in mind. I'm always ready to help you out.