// rest of the curve relatively little. Thus, we actually convert to gamma 2.2
// before lift, and then back again afterwards. (Gain and gamma are,
// up to constants, commutative with the de-gamma operation.)
// rest of the curve relatively little. Thus, we actually convert to gamma 2.2
// before lift, and then back again afterwards. (Gain and gamma are,
// up to constants, commutative with the de-gamma operation.)