DesignSystem Example

Designsystem.swift

struct ContentView: View {
    var body: some View {
        HStack {
            Rectangle()
                .frame(width: 200, height: 200, alignment: .center)
        }.card()
    }
}

public class DesignSystem {
    public typealias CornerRadious = DesignSystem.CornerRadiousOptions
    
    public struct CornerRadiousOptions {
        static var small : CGFloat = 8
        static var medium : CGFloat = 16
        static var large : CGFloat = 32
    }
}


struct RoundedView: ViewModifier {
    func body(content: Content) -> some View {
        content
            .foregroundColor(.white)
            .cornerRadius(DesignSystem.CornerRadious.medium)
            .shadow(color: Color(.lightGray), radius: 4, x: 4, y: 4)
    }
}

extension View {
    func card() -> some View {
        modifier(RoundedView())
    }
}