A photo of a tiny round black LED PCB hooked up to an even tinier round dev board, with a few wires running between them. The LED PCB has 128 1mm LEDs arranged in a Fermat's spiral pattern, like the head of a sunflower.
https://cdn.masto.host/ledssocial/media_attachments/files/112/096/253/323/917/794/original/e7573866e51682b2.png