ScrollContentBackground.swift

import SwiftUI

@available(iOS, deprecated: 16.0, message: "Use SwiftUI.scrollContentBackground()")
struct HidesScrollContentBackground: ViewModifier {
    init() {
        if #unavailable(iOS 16.0) {
            // beware, affects the app-global appearance proxy:
            // UITableView.appearance().backgroundColor = .clear
        }
    }

    func body(content: Content) -> some View {
        if #available(iOS 16.0, *) {
            content
                .scrollContentBackground(.hidden)
        } else {
            content // Boo
        }
    }
}

@available(iOS, deprecated: 16.0, message: "Use SwiftUI.scrollContentBackground()")
public extension View {
    @ViewBuilder func hidesScrollContentBackground() -> some View {
        modifier(HidesScrollContentBackground())
    }
}