In the direct-acting valve of the present invention, no flange is formed in the valve box and the piping is achieved by interposing the valve box between pipe flanges. A data access configuration is received from a server system managing a plurality of data sets. According to an embodiment of the invention, the optical attenuation elements change the illumination intensity of the object in such a manner that the central areas of the object are illuminated at a lower light intensity than its peripheral areas. An upper corner block covers the intersections of the existing doorway molding, and a lower corner block covers a section of the existing doorway molding with the existing baseboard, eliminating the need to cut mitered angles in the overlay molding.