Android Wear watch face engine

I'm looking to create a flexible watch face engine that lets me create new watchfaces based off a framework and new android wear watch face api where I can change out pngs for hour/minute/second hands and backgrounds this framework should allow me to add in different layers ie logos or watchface name etc as well as allow a user to show the following options in the android wear companion app: - Weather from openweather api - Fahrenheit or Celsius units - Weather update frequency options - 10 color presets - Watch face color picker - Date shown on watch - Text color options - Dim mode options - Sweeping seconds option - Translucent cards - Ok Google position options - Card height short and standard option - Battery phone / watch option The template should be easy to change on my end and be flexible enough to be used for different styles of watch face designs I create.