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Windows includes a calibration utility, but it’s well hidden. To find it, type calibrate into the Start search box in Windows 7, or the Charms search box in Windows 8, then select “Calibrate display color.” The first thing you get to play with is the gamma setting, which is something you’ve probably seen mentioned on the display options in many a game. Gamma correction has the power to lift murky shadow areas and reveal any sneaky rascals waiting to pounce, or alternatively restore highlight detail from an oversaturated sky. Defining gamma and gamma correction is tricky—so much so that you need to use phrases like “relative luminance” and “nonlinear perceptual response.” What matters is that messing with gamma correction is similar to adjusting both brightness and contrast at once. Windows adopts the Three Bears approach to setting the right gamma correction, giving you examples of too much gamma, too little, and just the right amount. All you need to do is tweak one slider to match the preferable midpoint.