I see that the playground has syntax highlighting and uses `ace`, whose syntax definitions are defined in JavaScript [0] and look fairly usable. I guess it coul

I see that the playground has syntax highlighting and uses `ace`, whose syntax definitions are defined in JavaScript [0] and look fairly usable. I guess it could even be converted into a `.sublime-syntax` file without too much trouble :) [0]: https://github.com/projectfluent/play/blob/a4f49a4a7eeb93535a6243be81c7c2a2b553c904/client/editor-mode-fluent.js#L19-L161 https://github.com/projectfluent/play/blob/a4f49a4a7eeb93535...