[Fontconfig-bugs] [Bug 94551] New: Provide a means for matching and selecting a color emoji font

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=94551

            Bug ID: 94551
           Summary: Provide a means for matching and selecting a color
                    emoji font
           Product: fontconfig
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: enhancement
          Priority: medium
         Component: fc-match
          Assignee: fontconfig-bugs at lists.freedesktop.org
          Reporter: d-r at roettsches.de
        QA Contact: freedesktop at behdad.org
                CC: freedesktop at behdad.org

In Chrome/Blink we need a way to explicitly select a color emoji font in order
to display emoji in the correct presentation form: text presentation or emoji
presentation. (as opposed to finding a non-color, outline font through regular
character fallback without an "needs-color-emoji-font" hint)

Android handles this through a special locale "und-Zsye" and finding a matching
font for an emoji character while specifying this locale at the same time.

This approach is somewhat in line with the proposed extensions to UTR #51:
http://www.unicode.org/reports/tr51/proposed.html#Emoji_Script

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