Swift

FocusedValue property wrapper allows us to observe the value from the focused view or one of its ancestors. It works in a very similar way to the Environment property wrapper, but instead of observing the environment, it observes the view hierarchy’s focused view.

In this post, let’s take a quick look at how to we can extend the UIKit, AppKit and SwiftUI colors with hex-based initializers that accept strings (e.g. "#abcdef") and numeric values (e.g. 0xabcdef).

Although you can use asset catalogs to define colors for your apps and frameworks, there may come a time when you have to create colors from hex codes, for instance when fetching colors from a web api.