Opentype specifications came earlier this year with amazing new possibilities about fonts: https://www.microsoft.com/typography/otspec/svg.htm Opentype-SVG fonts are already supported by Firefox (26+) and Microsoft Edge (38+). Samples here: Bungee color: https://github.com/djrrb/bungee Emoji one: https://github.com/Ranks/emojione/tree/master/assets/fonts#emojione-svg-based-color-fonts
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They are supported in recent versions of macOS and iOS.