Do we dream in black & white?

Do we dream in b&w? Research does rather suggest that if you were born into an age of b&w films, or TV, then likely the answer is yes. That would presuppose the person was 60 yrs old or older. It also points to a long embedded conditioning or series of memories, though I am no social scientist. What then if we take a known objective landscape, one from a well visited national park, well known and loved and photographed and change that memory? Make the objective, subjective. Add fatamorganas, slot in local known mountains yet add them where there are none, make it somehow a painting and at the same time a photograph. How does that sit with the concept of memory and landscape, the objective and the now changed subjective?