it has long been noticed that many galleries, especially full screen in the background of the picture there is some sort of a grid of round dots with different radius top and bottom less, to the center of the screen bigger (like the emulation of the gradient). when scrolling pictures of the mesh remains stationary, its more noticeable on light areas.
what is it?
artistic idea? problem with graphics card/directX/even what some software components?
maybe the browser protection from the full sized images below for example it was impossible Desk "draw"?
in all browsers that I tried (IE9, Opera, chrome, FF) effect is present.
on other computers like the same picture.
for example, here here
is possible to look
tried to Google, but such issues are not found, and terribly interesting, why so