Programmatic UI Framework for macOS. Swift handles app logic, CSS/SVG handles design and JSON handles struture.

Step 1: Add this to your Package.swift Tutorial

import PackageDescription
let package = Package(
    name: "AwesomeApp",
    dependencies: [
	   .Package(url: "https://github.com/eonist/Element.git", Version(0, 0, 0, prereleaseIdentifiers: ["alpha", "5"]))
    ]
)

Step 2: In AppDelegate.swift add this to the top @testable import Element and @testable import Utilsand this inside the applicationDidFinishLaunching method:

StyleManager.addStyle("Button{fill:blue;}")
let btn = Button(100,20)
let window = NSApp.windows[0]
window.contentView = InteractiveView()/*TopLeft orientation*/
window.contentView?.addSubview(btn)
btn.addHandler(.upInside) = { (event:ButtonEvent) in
   Swift.print("hello world")
}

You can also compile Element as a regular .framework instructions here

• Simple example app made with Element: Stash
• Library of example code for each component in Element: Explorer
• Default macOS styles to get you started: ElCapitan

Element for 📱 is in the works here

More about Element 👉 wiki