The redesigned app picker in the Messages app has been slightly tweaked to show your most recent photo as the icon for the “Photos” button. Previously, it just showed a generic photos glyph.
iOS 17 beta 3 adds a new “What’s new” splash screen to the Home app, as well as an updated scrolling interface for adjusting the color of multi-color lights. There is also a new icon option for garage doors, making for three choices total.