20EnglishNote: "Saturation" and "Tint" functions are not supported under computeror HDMI mode.ImageColorTemperatureModeUse this function to choose CT1 (6500K), CT2 (Native CT), CT3(7500K), User mode.R GainAdjusts the red gain for color temperature optimization.G GainAdjusts the green gain for color temperature optimization.B GainAdjusts the blue gain for color temperature optimization.R BiasAdjusts the red bias for color temperature optimization.G BiasAdjusts the green bias for color temperature optimization.B BiasAdjusts the blue bias for color temperature optimization.Gamma Effects the representation of dark scenery. With greater gammavalue, dark scenery looks brighter.Projection Front-Desktop• The factory default setting.Rear-Desktop• When you select this function, the projector reverses the image soyou can project from behind a translucent screen.Rear-Ceiling• When you select this function, the projector reverses and invertsthe image at same time. You can project from behind atranslucent screen with ceiling mounted projection.Front-Ceiling• When you select this function, the projector inverts the image forceiling-mounted projection.