based on https://apps.getpebble.com/en_US/application/553420d3bb57c2bf87000059
There are a grid of 12 squares. the missing square tells the hour. the text in that space gives you the minute. tap on the text to cycle between: minutes, heart rate, steps, battery percentage.
you can change the color of the squares on your phone via the watch face settings.
this is an export of the code from fitbit studio. In order to build to a watch or the fitbit emulator you must import this code into a new fitbit studio project. The only way I currently know to do this is by dragging and dropping all of the folders and files from this repo into a blank fitbit studio project.
If you want to make grab this code and make changes, please do. If you think your changes would benefit my project as well make a pull request with your changes and I will review them.