第三个，也是最大的矩形是一幅模糊的画中画，占据了画面主体。
The third, largest rectangle is an obscure painting-within-a-painting, reaching across the main picture.
我画4层叠矩形，绕一个点在画布上，然后再次绘制相同的形状，但堆叠的矩形没有保持完全一致。
I am drawing 4 stacked rectangles, rotating the canvas about a point and then drawing that same shape again but the stacked rectangles aren't remaining completely aligned.
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