如何在SwiftUI中更改ProgressView accentColor？

@State private var progress: Double = 0.5

var body: some View {
    VStack {
        ProgressView(value: progress)
    }
}

ProgressView(value: progress)
    .accentColor(.red) // 将accentColor设置为红色

@State private var accentColor: Color = .blue

var body: some View {
    VStack {
        ProgressView(value: progress)
            .accentColor(accentColor)
        
        Button("Change Color") {
            accentColor = .green // 点击按钮时更改accentColor为绿色
        }
    }
}