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If you go down to the Tate Modern today, this installation will greet you. All the pre-publicity described it as terrifying, but it is essentially a very large, unlit metal container into which you ascend. It's not very terrifying and it's not actually very dark. Your eyes soon adjust and easily discern the other people therein.
A couple of years ago, I walked into Anthony Gormley's steam cloud cube at the Hayward Gallery and was completely disoriented. I couldn't see beyond a couple of inches in front of me and people were consistently bumping into each other. It was an eye-opening experience.
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Photograph taken by Stephen White
It turns out that black isn't necessarily dark and that white can be. Marketers should be very pleased about that. Too often, they're not.
Addendum: And sometimes, like art critics, they even get
indignant if their users don't react as expected or, worse still, told.