linearGray The gray color space using a linear transfer function. Declarationclass let linearGray: CFString See AlsoAccessing System-Defined Color SpacesdisplayP3displayP3_HLGdisplayP3_PQ_EOTFextendedLinearDisplayP3sRGBlinearSRGBextendedSRGBextendedLinearSRGBgenericGrayGamma2_2extendedGrayextendedLinearGraygenericCMYKgenericRGBLineargenericXYZgenericLab