I did the "squint" test. When squinting the one with the green sashing, I saw green lattice-work, and very little behind that. When I squinted at the bottom one I saw what seemed to be a continuous sea of color with lattice in front of it.
I had a knitting pattern that was called: "See the Light". It was reversible two-color knitting: on whichever side the light yarn was more prevalent, that's where you saw the light. The dark seemed to melt into the background. So the two sides made different patterns, even though the knitting was the same on both sides.
That is what is happening to this pattern. You see the light.