So... does anyone actually want this feature?
I wouldn't go so far as to call it a killer feature but lots of people have their kids, their pets, or both on the lock screen. Having the phone able to just "figure out" a decent color contrast scheme is a nice to have.
"Android 12's huge UI overhaul"
I read that part of the headline with dread.
Change just for the sake of change irritates me on a fundamental level. Often times, it's accompanied by vast increases in code length, reducing available storage. It also rarely improves the performance of the device it's installed on. Almost always, it makes that devices slower and harder to use.
This bit of visual fluff would be an issue with me, since I'm partially color blind and use high contrast settings because someone in their infinite stupidity thought pastels of the same colors were great (they are usually all one solid shade to me). I assume high contrast settings would eliminate this feature's function, or I could just turn off this feature, but it's still more dead code I'll never use cluttering up my phone.
More generally, and the reason why this post is longer, is I greatly dislike UI changes in my devices IF they don't come with improvements in the way I do things. Most often, these changes do the equivalent of turning a simple two click procedure into a four of five click marathon. Or they hide labels and change icons at the same time so you don't know what the fuck is going on. Or they change positions of buttons so you don't click the same place anymore, but always do out of habit.
I always hated Easter egg hunts in UI's. After you reach a certain level of fed-up-ness, change just for the sake of change begins to really piss you off.
TO BE FAIR, and the only thing that give me hope this rant is might pointless regarding Android 12 specifically, I saw very little change between Android 10 and Android 11 when it recently updated in my phone. Some visual bling differences, but everything was where I left it, and navigation was still much the same as before. That's the rare exception to OS changes in my experience. I was braced for disaster, and didn't experience one. It came as a profound relief.
Kudos to Google for making that transition as smooth of one as I've seen in decades.
If going from 11 to 12 is just as smooth, well, I'll feel pretty embarrassed about this diatribe. But this shading feature, which wouldn't work for me AT ALL, along with the "huge UI overhaul" in the headline portends other and major changes to the UI. If those changes improve the performance and the use of my device (which they usually do NOT in other devices), then I've got nothing to diatribe about.
But I'm bracing to be spending precious hours of my life ONCE AGAIN contending with an utterly pointless change in the UI of an OS.
Now, this isn't to say I dislike updates. I'll take all the security updates they can throw at me. I'm GOOD with those, EVEN IF they mess with the UI. They're NECESSARY changes. I get that. But devs love to pee in everyone's herbal tea and do stupid visual changes that alter button locations, icon designs, layout and other things just because they can without any valid reason for doing it other than "change is good". It may have been fun the first thousand times. It gets quite irritating eventually.
Again, I don't KNOW that this will be a problem between 11 and 12. And I'll see what's coming before hand thanks to Ron's reviews and insights. But I do not get excited about changes in the way I use my phone. If the experience is as smooth between 11 and 12 as it was between 10 and 11, then I'll probably be embarrassed by this diatribe. But this diatribe isn't specifically about that. It's about how devs change UI's in OS's and how often those changes just suck great, greasy, hairy balls for the end user.
If updating a UI was as nice as it was between Android 10 and 11, I'd have no issues with UI updates. That was an unusually pleasant experience because other than some visual bling, I noticed no functional differences that negatively impacted my experience. That's how it SHOULD be. My diatribe is about how it's usually awful for OS's in general, and that's NOT now it should be. With a "huge UI overhaul" coming, I'm not nearly as sanguine about the coming experience as I'd like to be.
/rant