有没有办法在Tkinter菜单中更改选定的字体颜色？

import tkinter as tk

window = tk.Tk()
window.title("Change Font Color")

selected_color = tk.StringVar()
selected_color.set("black")  # 默认选定黑色

def change_font_color(*args):
    # 获取选定的颜色
    color = selected_color.get()
    # 更改菜单字体颜色
    menu.config(fg=color)

# 创建下拉菜单
menu = tk.OptionMenu(window, selected_color, "black", "red", "blue", "green", command=change_font_color)
menu.pack()

window.mainloop()