Some part of me thinks, they changed everything to a shade of grey so that when they inject rainbow colors into icons they stand out more. I also think new icon

Some part of me thinks, they changed everything to a shade of grey so that when they inject rainbow colors into icons they stand out more. I also think new icons are too abstract and make no sense whatsoever, I miss the Photos icon every single time I try to open the app. It's all about rainbows.