A plastic window assembly includes a substantially transparent plastic panel and an opaque plastic frame adhered to the perimeter of the panel, which bounds and defines an effective viewing area of the panel. A transition step of the frame extends upward from the surface of the panel to a raised surface of the frame. Provided on the surface in the effective viewing area of the panel is an image. In order to print the image such that the outer edges of the image extend to an interfacial area defined by the juncture of the transition step and the second surface of the panel, a MIT printing process and specialized membrane construction is used.