python - 如何将图像显示为默认背景？我使用了 guizero 并导入了图片，并且能够带来图像，但它显示在画布下

Question

我需要帮助才能将图像显示为默认背景。到目前为止，我已经将背景设置为一种颜色，粉红色。

from guizero import App, Text, Drawing, PushButton, Box, TextBox, Picture from random import randint from ground_object import GroundObject fromfalling_object import FallingObject from timer import Timer, TimerApp

类游戏模拟：

def __init__(self, app):
    
    app.title = 'Avoid Falling Meteor' 
    app.width = 500
    app.height = 500
    box = Box(app, layout = 'grid', width= 500, height= 500)
    
    #app.when_key_pressed = key_event_handler
    self.drawing = Drawing(box, width= 500, height= 450, grid=[0, 0, 6, 1])
    self.fo_list = []
    self.app = app
    app.when_key_pressed = self.key_event_handler
    
    picture = Picture(app, image = 'images/space.png')
    
    # Build a cover background color  
    self.drawing.rectangle(0, 0, self.drawing.width, self.drawing.height,
                           color = 'pink')