This document provides design guidelines for improving the interoperability of emoji characters across platforms and implementations. It also provides data that designates which characters are considered to be emoji, which emoji should be displayed by default with a text style versus an emoji style, and which can be displayed with a variety of skin tones.
CITATION STYLE
Unicode Inc. (2016). Unicode Technical Report #51. Retrieved from http://www.unicode.org/reports/tr51/
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