In particular I am referring to the color matching of navigation UI to the app icon color. For example, communication apps (such as Phone, Messages, and Mail) have blue highlights, while Music has pink highlights, Home has yellow highlights, News has red highlights, Podcasts has purple highlights, and TV has blue highlights. But the various apps that were redesigned in iOS 13 (Find My, Reminders, and Health in particular) all have the default blue highlights instead of color-matched highlights, which is particularly odd in the case of the Health app, given that the previous version had pink highlights that were color-matched to the app icon. It just seems like a lack of the attention to detail that Apple used to be know for. So, my question is, what happened to the design philosophy of color-matching the navigation UI to the app icon's colors?