The coffee on the left is lighter than the coffee on the right. The coffee on the bottom is the ground version of the coffee on the top (with greater difference for lighter coffees than for darker coffees)
This development sort of makes me wish I picked up some of the puzzles I saw last time I was in S. Korea.
Good dog.
Anyway, if you want to know what my shop looks like, imagine what you see there but with more light.
Wilson's Coffee & Tea Promo https://video.typica.us/videos/watch/c6635cd5-0d37-4d44-884b-0408c8d0d9da
Author of Typica software for coffee roasters.