Merge commit 'bd2973db0b0c2354b2ca793beed5048e66fbd023' * commit 'bd2973db0b0c2354b2ca793beed5048e66fbd023': hide setGammaForText, which is only used for calibrating new devices
Merge commit 'bd2973db0b0c2354b2ca793beed5048e66fbd023' * commit 'bd2973db0b0c2354b2ca793beed5048e66fbd023': hide setGammaForText, which is only used for calibrating new devices