extension Color {
    static let background = Color("background")
    static let lightBlue = Color("lightBlue")
}

struct Display: ViewModifier {
    var color: Color
    
    func body(content: Content) -> some View {
        content
            .foregroundStyle(color)
            .font(.custom("omyu pretty", size: 27))
    }
}

extension View {
    func display(_ color: Color) -> some View {
        self.modifier(Display(color: color))
    }
}

// color
Image(systemName: "globe")
                .imageScale(.large)
                .foregroundColor(.lightBlue)

// text style
Text("Hello, world!")
                .display(.black)