Doesn't really surprise me. I think Craig Federighi's software engineering group is probably more open user customization than the old regime was.From time to time, Apple can be really surprising. Not only did I not expect Apple to introduce such a feature, I also did not expect to see so many options for it. After the low-power mode, I would have expected a simple on/off for this feature, but it turns out that you can now set the colour temperature permanently and you can set up a schedule or use one that is based on location and time. An amazing development.