It surprised me to find out that a lot of people aren't affected by colour in their environment. To them a room is brown or grey and they don't get distinctions in shade, tone, value or chroma. But for me a room that is the wrong shade or tone has to be fixed. I've been known to paint the walls up to three times to achieve the colour I want.
The wall photos scattered through here are of exterior walls in Mexico. The rest are nature's colours.