When you Order Brown Kraft Greeting Cards Folded At Print Magic, you get the option to use a White Mask and below the colors and to enhance their effect. Since the paper stock is dark, all colors printed on and it don’t look as bright as they should. By Adding a white base also helps bring their vibrancy back and helps show crisp and sharp colors. Make sure your Mask file is in a vector form and the exact size as your custom design and to avoid any alignment problems while greeting card printing.