iOS 18 tintable widgets helper method

SwiftUI+tintedWidgets.swift

//
//  SwiftUI+tintedWidgets.swift
//  Timelines
//
//  Created by Lukas Petr on 18.08.2024.
//

import SwiftUI

fileprivate struct LuminanceViewModifier: ViewModifier {
    @Environment(\.widgetRenderingMode) var renderingMode
    
    func body(content: Content) -> some View {
        if renderingMode == .accented {
            content
                .luminanceToAlpha()
        } else {
            content
        }
    }
}

extension View {
    func luminanceToAlphaInAccentedMode() -> some View {
        modifier(LuminanceViewModifier())
    }
}