Apparently Blue Light Reduction mode in iOS 9.3, also dubbed Night Mode, has a hidden trick up its sleeve that should make many that care about their display's color temperature happy: it finally allows users to set the color temperature of their display to their personal preference. What does this mean exactly? That when iPhone 7 comes out, whenever somebody on the forum complains that the display is too "yellow" (warm) for their liking we can point them to setting the display's color temperature to a cooler (bluer) temperature, which is now possible. It was a long time coming since many iPhones' color temperatures are set slightly differently off the production line and thus there have been disparities even between two of the same model side-by-side, but Apple has fixed this issue and hidden it into Night Mode for us display enthusiasts . Personally I prefer a warm display, and heck one of the reasons I didn't buy an iPad mini 4 when it was on-sale for under $299 was because the display was too cool compared to my iPhone 6s Plus's warm display, which I love.