Remixed from Lenovo Legion Y720/520 keycap.

Sliced at 0.2 mm layer height, with 0.4 mm nozzle. I increased retraction length and retraction speed to reduce stringing with PETG, and lowered a bit the temperature and print speed.

To make sure thin perimeters are printed, I set the "minimum perimeter width" to 25% in Prusa Slicer, otherwise there were hollow gaps.

TODO The shoulder of the pin can be extended above the border to make it sturdier.