Illustrations by OpenMoji (https://openmoji.org), CC BY-SA 4.0 (https://creativecommons.org/licenses/by-sa/4.0/). Unmodified SVG artwork. Source: https://github.com/hfg-gmuend/openmoji/tree/aeb8bb3a59e2de39c754ac79180c8131c906acea/color/svg