更改通过鼠标单击并拖动按下的所有画布项目(矩形)的颜色(Tkinter)

import tkinter as tk

def change_color(event):
    overlapping_items = canvas.find_overlapping(event.x-1, event.y-1, event.x+1, event.y+1)
    for item_id in overlapping_items:
        canvas.itemconfig(item_id, fill='red')

root = tk.Tk()
canvas = tk.Canvas(root, width=400, height=400)
canvas.pack()

rect1 = canvas.create_rectangle(50, 50, 150, 150, fill='blue')
rect2 = canvas.create_rectangle(200, 200, 300, 300, fill='green')

canvas.bind('<B1-Motion>', change_color)

root.mainloop()