Review complete. The Datasheet URL was already set, so I did not replace it; the schematic pin numbers/names match the datasheet: 1=VDD, 2=DOUT, 3=VSS, 4=DIN.
Main issue flagged: the footprint copper pads appear effectively zero-sized/invalid, so the part will not fabricate/solder correctly as-is. I saved the detailed review here:
sk6812rgbw-ws-part-review.