Microsoft senior software engineer Raymond Chen has explained what Windows is doing when you hold down the power button, and shared a story about the time a customer accidentally created a Goth Mode for Windows 3. 1. There’s a section in The Hitchhiker’s Guide to the Galaxy (actually, page 116 of this writer’s dog-eared copy of The Restaurant at the End of the Universe ) in which Zaphod Beeblebrox observes of a ship’s interior: "Every time you operate one of these weird black controls that are labeled in black on black background, a little black light lights up black to let you know you’ve done it." The same turned out to be true of a user who called Microsoft customer support to complain that after Windows 3. 1 booted up, all that remained after the product logo disappeared was a blank screen. It turned out the customer liked black a little too much and, according to Chen, made themself a Goth theme. The customer support engineer on Microsoft’s end pieced it together. The customer had, according to Chen, "set the wallpaper color to black. They set the title bar color to black. They set the button color to black. They set the window background color to black. They set the window text color to black. "Every possible color you could pick in the Colors control panel was set to black."…