love.graphics.isGammaCorrect
Gets whether gamma-correct rendering is supported and enabled. It can be enabled by setting t.gammacorrect = true in love.conf.

Not all devices support gamma-correct rendering, in which case it will be automatically disabled and this function will return false. It is supported on desktop systems which have graphics cards that are capable of using OpenGL 3 / DirectX 10, and iOS devices that can use OpenGL ES 3.
gammacorrect = love.graphics.isGammaCorrect()
gammacorrect boolean True if gamma-correct rendering is supported and was enabled in love.conf, false otherwise.