Yes- barring is just that- white bars laid across the feather. Birds like Barred Rocks, Cuckoo Marans are simply solid black chickens with the barring gene added. If you were able to magically remove the barring from those, they would suddenly turn solid black.
Barring can go on other color bases, but often the look is not quite the same because for some reason barring is the clearest on black chickens.
Anyways, as above said, Goldens are barring over another color marans.. In some breeds there are Creles.. True Creles are barring over a Red Duckwing. I use "true" as it is very common for a bird that is not solid black and has barring to be called Crele..
Some people are working on or made lines with barring over other color bases such as Red Barred (often is barring added to something dark red like a RIR) or Buff Barred etc. A common problem is the bars are not as well defined, however there can be really beautiful birds in those other colors.