The site looks more ‘theoretical’ than actually applicable in the real world, but it’s an intriguing idea, with a product suited for unique materials (so long as they’re two complimentary colors) — Chalk Chess:
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The site looks more ‘theoretical’ than actually applicable in the real world, but it’s an intriguing idea, with a product suited for unique materials (so long as they’re two complimentary colors) — Chalk Chess: