The shapes all look like they have been filled with a gradient
No parts of the fill extend outside the black borders
All of the rects look identical
The circles must be fully filled by the filter output, which should resemble a radial gradient with a white focal point in the lower right position (about four o'clock, as shown by the small white circles)
The rects must be fully filled by the filter output, which should resemble a radial gradient with a white focal point in the lower right corner.
