RGBA components from SwiftUI.Color

Color+rgba.swift

import SwiftUI
#if canImport(UIKit)
typealias PlatformColor = UIColor
#elseif canImport(AppKit)
typealias PlatformColor = NSColor
#endif
extension Color {
    var rgba: (red: Double, green: Double, blue: Double, alpha: Double) {
        var red = CGFloat()
        var green = CGFloat()
        var blue = CGFloat()
        var alpha = CGFloat()
        PlatformColor(self)
#if canImport(AppKit)
            .usingColorSpace(.sRGB)!
#endif
            .getRed(&red, green: &green, blue: &blue, alpha: &alpha)
        return (red: red, green: green, blue: blue, alpha: alpha)
    }
}