Night mode is an automatic setting which takes advantage of the new wide-angle camera that's in the iPhone 11 and 11 Pro models. It's equipped with a larger sensor that is able to let in more light, allowing for brighter photos when the light is low.
macOS Catalina Now Available
Apple vs. Mac OS X Hackers
"Your karma check for today: There once was a user that whined/his existing OS was so blind/he'd do better to pirate/an OS that ran great/but found his hardware declined./Please don't steal Mac OS!/Really, that's way uncool./(C) Apple Computer, Inc."
Apple confirmed that it had placed these messages into the Mac OS software hoping "it, and many other legal warnings, will remind people that they should not steal Mac OS X."
It appears that that may not have been the only approach Apple may have taken, as a message on OSX86Project.org Forums indicates that they have been issued a DMCA violation notice:
We're sorry to report that despite our best efforts, the OSx86 Project has been served with a DMCA violation notice. The forum will be unavailable while we evaluate its contents to remove any violations present. We thank you for your patience in this matter.
The OSX86Project.org and forums discussed methods/attempts to run Mac OS X on PC hardware. Earlier this week, an individual developer posted patches to install Mac OS X 10.4.4 on PCs.