This first letter convention is a good idea. At the moment, I am investigatig AirBnB’s React Sketch App (https://airbnb.design/painting-with-code/) AND/OR the best way to back my Sketch designs into the frontend framework that dev team is using.
Currently, I need to find the best way to design for Tachyons + Material Design & iOS Design guides.
Naming rectangles the appropriate Tachyon class(es) seems most feasible. then, copy CSS from InVision (when feasible) into the same Tachyon CSS varialbe.
So very compelx.