This is a heavily interactive web application, and JavaScript is required. Simple HTML interfaces are possible, but that is not what this is.
Post
Peter Friese
peterfriese.dev
did:plc:aa5uyupjm7phzzptlmclp2wr
Nested rounded corners often look slightly off if the radii don't match concentric curves.
@natpanferova.bsky.social breaks down how to use the new ConcentricRectangle shape and containerShape() modifier in iOS 26:
https://go.peterfriese.dev/swiftui-concentric-rectangle?s=social&t=ext
https://nilcoalescing.com/blog/ConcentricRectangleInSwiftUI
2026-09-11T14:00:20.860Z