Minimal and highly readable face. 

Top: battery %, day name, month/day
Middle: large time
Bottom: heart rate and steps

The settings page lets you configure: 
- 2 different layouts, see thumbnails
 - border font
 - large time main font
 - text color
 - background color
 - inverts (the 2 colors can swap every second, minute, hour, day, or be disabled). 

I'm not a programmer, so there may be bugs. Made with AI (ChatGPT).