v3
--

- replace 0805 LEDs with 0603 (makes it more compact)
- shield LED only on if shell is interconnected AND grounded (was OR before)

v2
--

- schematic and board layout redrawn in KiCAD
- slightly change front text to be more symmetrical
- change USB-C connector to improve manufacturing yield

v1
--

- reroute SBU test to only use one LED
- make LED colors symmetric

v0
--

initial design, based on a protoboard prototype.