Support more (or all) OpenType font features

[pke]

The OpenType font spec lists a lot more than what is currently supported in RN:
https://docs.microsoft.com/en-us/typography/opentype/spec/featurelist

The feature is currently very limited and differently handled on both platforms.

A better CSS style support of font features would be preferred. Android has native support for that already, so this functionality would have to be just made available as new style prop to JS.
iOS also supports the full spec but would need a custom (CSS) parser to parse the style setting.

Are there any good resources out here how to add a new property to RN StyleSheet and how to access it in the respective Text render components?