White Stripes ... passengers or those who need medical assistance. Grey Stripes: It's only for women coaches with grey-on-grey backgrounds. Red Stripes: Are for first-class coaches, usually ...

And with this regular pattern of gray lines on a white background, the brain guesses that there’ll just be more of the same, missing the intermittent black dots. Those dots disappear and ...

and many “blueprints” are now black or grey lines on a white background. Xerograph just doesn't have the same ring as blueprint for a shorthand description for a master plan, though.

There have been slight variations in the description of the issue, but most accounts agree the lines are grey or white, horizontal or slightly angled, granulated or pixelated in appearance ...