Design Guides: Color
This design has been updated for Repeating Elements and features a single SF Symbol that has been repeated five times across, and then that row of five has been repeated all the way down the page.
Each row gives you a SwiftUI color and a set of SF Symbols that you can tap to customize. This is how DetailsPro lets you have nested repeats—you can repeat the nested sets as many times as you would like and do it separately in each row (so one row could have 5 symbols, and another only 2, and they are still synced to the original SF Symbol for changes).
Plus, you can explore the system colors with this handy reference.