Allow me to explain that technical title. I have added a radial gradient to the rays in the background. The center of the rays is darker and they get lighter at the edges. The effect is subtle, but the eye picks it up subconscioulsy for an enhanced sense of depth. I have made the rays into a template which can be superimposed on any backgorund and colorized as needed to fit any image. If you want this effect added to any previous image you have seen; just let me know, and I can make the change.