The reason why the room was pink was because on black and white film, hues of red become dark shades of black. Pink is the perfect balance to give it that dark creepy grey.
A related fun fact: while old black and white film was under-sensitive to reds, it was correspondingly over-sensitive to greens. Actors whose characters were meant to have unnaturally pale complexions - like Morticia Addams - would often take advantage of this by wearing makeup with a green base tint in order to make their faces “pop”. This is where the modern trope of cartoon vampires having green skin comes from.
These are some fun fucking facts
What is a hero without a villain?
What is a villain without a hero?
Korra Week: Day 7 → Triumph
"She did it."
WE ARE GOING TO MEET DANNY PINK TODAY!
JACK HARKNESS MEETING BUCKY AND STEVE IN THE 1940s AND FLIRTING FURIOUSLY WITH BOTH OF THEM
JACK HARKNESS SEEING THEM AGAIN IN THE 21ST CENTURY AND THEY’RE ALL EQUALLY CONFUSED AS EACH OTHER