Round Keys for the HBB Keyboard and a basic example case for positioning when designing your own.

I printed these keys on an IDEX printer but you could easily do a filament change for multi-color with a single extruder.

If you don't want to do multi-color then you can separate the bodies in your slicer, delete the symbol fills, and leave the 0.2mm gap so that it has a different texture when printed.

I've included a blank key as .stl and .stp so you can make your own symbols.

I've also included my config with the layout in the pictures. It has a little gcode macro to easily reset the LEDs to the start-up color with a macro button in your web interface.