North Korean state-run shops can be found throughout various districts in Pyongyang and indeed throughout North Korea. These North Korean state-run shops have their own distinct signage. More of which you can see below!
There is still no privatization of North Korean stores.
The ones with blue signs are North Korean state-run shops and not run by individuals or groups who have set up quasi-private restaurants/shops where there is more personal motivation involved in running a successful enterprise (perhaps perks like a car, better housing etc).
These shops can only accept North Korean Won. (No foreign currency such as USD or RMB.)
There is nothing like an illuminated graphic and a limited number of shops for you to know exactly where something is. The various districts in Pyongyang have official stores where you will find the basic necessities. From sweet shops, tobacconists, vegetable shops to cold noodle restaurants, and bars.
In central Pyongyang, there is wonderful signage that dates back to the 1980s and gives a pretty clear graphic guide as to what is going on inside the North Korean state-run shop.
New signs from the 2000s are for the mobile phone shop and the Korean stamp shop. The Chollima horse appearing on an embossed stamp.
This Korean stamp shop sees few custom other than foreigners. It is not to be confused with the post office represented by the envelope.
Photo taken in February 2012 of pedestrians dressed up in warm clothing walking past the Corn Speciality Restaurant. A restaurant in Pyongyang that specializes in corn/maize.
Note the restaurant name has also been embellished with a corn-style font.
You cannot get cooler than that!