A stencil. Many harlekin squares. Use different colors or tones. For example. can you give each hole in the stencil a new color.
Although it is a strict geometric pattern, you can easily place each harlekin spradically on a surface. Creativity is diverse here.
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Here, there is printed harlekin diamond like windows on fabric. To a scenography for a musical. There is a thin curtain fabric on which the light shines through. A super nice effect that you can use on your own sun curtains or make a nice curtain that does not close the light.