在PySimpleGUI中更改输入框的背景色

import PySimpleGUI as sg

layout = [[sg.Text('Enter your name:')],
          [sg.Input(key='-INPUT-', background_color='red')],
          [sg.Button('Submit')]]

window = sg.Window('My Application', layout)

while True:
    event, values = window.read()
    if event == sg.WINDOW_CLOSED:
        break
    elif event == 'Submit':
        name = values['-INPUT-']
        sg.popup(f'Hello, {name}!')

window.close()