Material You. I wondered why they wasted resources for ... colors. But it's so nice to have a consistently colored UI across apps and across dark/light modes, and I wished that more apps would support it. Also, those pastel colors are less stressful for the eyes than the previous grey/blue.
I know it's not everyone's taste but I really like it.
I have to respectfully disagree here. I would like to be able to choose what that color is. I HATE when I use a picture of my orange cat for a background and all my apps are brown.
If there's some way to override it and choose your own color, I haven't found it.
Thanks for the tip! Unfortunately, I don't think it's an option in OxygenOS. I think I've tried LWP+ before and it didn't work. I might give it another shot, though.
As for now, I've got a picture of my calico cat as my home screen wallpaper. She's very white up front so it's more bluish. I like it. My orange boy is my lock screen. So it works out.
I honestly just want it all pitch black because menus on an OLED look fantastic when the background is black. I believe I already had everything blacked out before the update.
Over on /r/Android there was a very vocal crowd that saw it not only as a gimmick but actively detested it. In their opinion an UI is only good when it has an AMOLED black background (and 0 px padding between UI elements, but that's a different topic).
Yes, it just looks so clean when everything has the same nice theme. I love it! I use Muzei as a live wallpaper app at the same time and it's great to have different colors every hour because of the many wallpapers I have set in it.