I’ll start by saying I love LEDs. https://theledroom.wordpress.com/ which is one of the reasons I decided to help with this footprint. I have a large collection of Individually Addressable LEDs but never enough as it turns out. I have a project that needs a few thousand I.A. LEDs and the smaller the better so why not try out these 2020 ones. I started to design a board with the part from Peter above but found that the recommended footprint (the one I made from the data sheet) did not work well when trying to design a compact layout. My solution was to modify the footprint to allow the two GND pads to be connected under the chip (top left and bottom middle).
This makes some of the pads very small (although still larger than the pads on the LED).
Image and part removed. See Part request to apa102-2020