You can change the whitepoint. Not the same, though, but something. https://www.iphonetricks.org/the-ios-reduce-white-point-feature-dims-your-iphone-screen-bel

You can change the whitepoint. Not the same, though, but something. https://www.iphonetricks.org/the-ios-reduce-white-point-feature-dims-your-iphone-screen-below-brightness-minimum/ https://www.iphonetricks.org/the-ios-reduce-white-point-feat...