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Download Noto Color Emoji via the split woff2 fonts #41282
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This is a prototype |
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We are weighing the font size benefits against the code size hit from including brotli decompression with the Flutter engine. |
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- Enable support for WOFF2 fonts. - Add Brotli depndency (increases CK size by ~53KB compressed, including the Brotli dictionary). - Use split WOFF2 fonts for Emoji. - Remove the `useColorEmoji` runtime config flag. Partially based off of #41282 Fixes flutter/flutter#119536 Contributes to flutter/flutter#153974 and opens the door for moving more fonts to WOFF2.
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- Enable support for WOFF2 fonts. - Add Brotli depndency (increases CK size by ~53KB compressed, including the Brotli dictionary). - Use split WOFF2 fonts for Emoji. - Remove the `useColorEmoji` runtime config flag. Partially based off of flutter/engine#41282 Fixes flutter#119536 Contributes to flutter#153974 and opens the door for moving more fonts to WOFF2.
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Rather than download the monolithic 24MB Noto Color Emoji .ttf font, this change uses the .woff2 subfonts by accessing the GoogleFonts CSS API and preprocessing the split subfonts.
This change requires a corresponding change in buildroot and Flutter's freetype mirror to make use of brotli and woff2.
Pre-launch Checklist
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