如何将matplotlib画布与wx框架中的wx面板对齐

import wx
from matplotlib.figure import Figure
from matplotlib.backends.backend_wxagg import FigureCanvasWxAgg as FigureCanvas

class MyFrame(wx.Frame):
    def __init__(self, parent, title):
        super(MyFrame, self).__init__(parent, title=title, size=(800, 600))
        self.panel = wx.Panel(self)
        self.figure = Figure()
        self.canvas = FigureCanvas(self.panel, -1, self.figure)

import matplotlib.pyplot as plt

def plot_graph():
    x = [1, 2, 3, 4, 5]
    y = [1, 4, 9, 16, 25]
    plt.plot(x, y)
    plt.xlabel('X')
    plt.ylabel('Y')
    plt.title('Graph')
    plt.grid(True)

class MyFrame(wx.Frame):
    def __init__(self, parent, title):
        super(MyFrame, self).__init__(parent, title=title, size=(800, 600))
        self.panel = wx.Panel(self)
        self.figure = Figure()
        self.canvas = FigureCanvas(self.panel, -1, self.figure)
        
        plot_graph()  # 调用绘图函数
        
        sizer = wx.BoxSizer(wx.VERTICAL)
        sizer.Add(self.canvas, 1, wx.EXPAND)
        self.panel.SetSizer(sizer)
        self.panel.Layout()