Food (or even drink) are pointed out to explained what it is -- very clearly to customer.
These two pictures I took them from Old Town Kyoto & New City like Tokyo. The left picture (even it's a traditional nabe shop in old town), it was pointed out by arrows what were contained in nabe pot. However, the right picture (it's the modern cafe -- a kind like fast food), there were also arrows point out to explain each cup of coffee.
I like Japan !!!
As I always says "They are very thoughtful for their consumer" ...