如何在SwiftUI中设置SF符号的大小？

import SwiftUI

struct ContentView: View {
    var body: some View {
        VStack {
            Image(systemName: "heart.fill")
                .font(.system(size: 50)) // 设置SF符号的大小为50
                .foregroundColor(.red)
            
            Text("喜欢")
                .font(.system(size: 20))
                .foregroundColor(.black)
        }
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}