Support for OpenType SVG Color Fonts would be awesome. According to adobe it's supported in Windows 10
"In Windows 10, the DirectWrite and Direct2D platform components allow OpenType-SVG support in any apps that use those APIs"
Basically, this allows you to load fonts that have pre-defined colors built in. I have included a screenshot of an example, and you can see more by visiting this page on firefox (chrome doesn't support it unfortunately). https://color.typekit.com/