Robert H. Justman said this quote

“ We’re all in outer space, Jerry, and we’re in color. NBC claims to be the first full- color network, so let’s prove it for them. When you light the sets, throw wild colors in—magenta, red, green, any color you can find—especially behind the actors when they’re in a close shot. Be dramatic. In fact, go overboard. Backlight the women and make them more beautiful. Take some chances. No one can tell you that’s not the way the future will look. ”