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[css-fonts] new generic font 'emoji'

From: John Daggett <jdaggett@mozilla.com>
Date: Thu, 21 Aug 2014 00:57:49 -0700 (PDT)
To: www-style list <www-style@w3.org>
Cc: public-webfonts-wg <public-webfonts-wg@w3.org>
Message-ID: <111867315.16565038.1408607869598.JavaMail.zimbra@mozilla.com>

Currently CSS defines a set of five generic fonts [1]:

  serif, sans-serif, monospace, cursive, fantasy

I'd like to propose expanding this to include a generic font for
emoji characters:

  emoji

The 'emoji' value would map to whatever emoji font is available on a
given platform (e.g. Apple Color Emoji, Segoe UI Emoji, Noto Color
Emoji).

Part of the motivation here is that when Unicode defined a mapping
of emoji characters into Unicode, it explicitly unified some of
these with existing symbol codepoints. If an author relies on system
font fallback to choose a font there's no guarantee an emoji font
will be prioritized over a symbol font, since it's difficult for a
user agent to distinguish between symbol vs. emoji usage. Specifying
the 'emoji' value in a fontlist would prioritize the use of color
glyphs for all codepoints covered by the emoji font.

Thoughts?

Cheers,

John Daggett
Mozilla Japan

[1] http://www.w3.org/TR/css3-fonts/#generic-font-families
Received on Thursday, 21 August 2014 07:58:16 UTC

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