Displaying borders around views in SwiftUI is easy, and this post shows how to draw borders that are simple, rounded, or have another shape.
Image Buttons With Alternative Image On Press In SwiftUI
Learn how to create image buttons in SwiftUI with alternative images on press and release, and meet an additional interesting technique.
GTOverlayView
Show a customizable overlay view on top of any other view on UIKit-based iOS projects. Available as a Swift Package.