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. 2023 Feb 11;14:793. doi: 10.1038/s41467-023-36482-4

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 3 — a Series of reflection optical micrographs of the micro-crescents with the radii from 4.9 to 19.2 μm. Scale bar, 20 μm. b One round for color cycling in the radius range of 8.4–14.9 μm in 12 steps. Illumination and observation direction are both maintained at a polar angle of 20°. Scale bar, 20 mm. c CIE diagram showing the circulatory shift of the coordinates for the size change in (b). Source data for c is provided as a Source Data file.