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This profile can be attached to a screen in System Preferences and the settings will stick even when Gamma Control is not open. You can export Gamma Control settings in a color profile.
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If you are filming with a camera and the mid-range colors appear too bright (washed out) or too dark, adjust the middle point until the camera sees things the way you want. If the screen looks too blueish or is otherwise clashing with its surroundings, adjust the white point to better match the the environnement and lighting. Gamma Control lets you balance the screen’s colors with the ambiant light. To avoid this, maintain the screen at its maximum brightness and instead reduce the luminance of the white point using Gamma Control. Generally invisible to the naked eye, this will often result in horizontal or vertical lines when captured on camera. Many LCD panels today adjust the brightness of their backlight using PWM (pulse width modulation), switching it on and off quickly like a strobe. Just start your video or play your game and enjoy the lack of darkness. The setting applies to the whole screen in real-time so you don’t need to take a screenshot and open an image editor. The middle point adjusts the tint for grays and can lighten or darken intermediate colors. It can also be used when playing games or viewing videos to reveal details normally too subtle to be seen. Gamma Control is used by designers, photographers, and filmmakers to improve color reliability or adjust screens so they fit within various lighting conditions in pictures or videos.
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