Either storyboards or animatics. Depends on your study material.
Answer:
Because without internet culture, a meme that is essentially just a picture of hallway demons with the caption "me and the boys at 3 am lookin for beannnzzz" wouldn't be funny.
Explanation:
Art in the past has often been abstract. So too, has our humor.
The walls are where you would need to chose the colors carefully because if, for example, your trying to get a gloomy mood you would want grey walls. But if you want/need a room with a happy mood you would maybe want pink or yellow or green light airy colors like a nice blue as well. Other than the walls i would say that you would have to carefully choose the colors would maybe be the ceiling because when you look up you could see the colors that were chosen to make a nice or whatever else feeling.