オブジェクト指向プログラミングは Tkinter アプリケーションの構造とスケーラビリティをどのように改善できるでしょうか?

# Use Tkinter or tkinter depending on Python version
import tkinter as tk

class MainApplication(tk.Frame):
    def __init__(self, parent, *args, **kwargs):
        tk.Frame.__init__(self, parent, *args, **kwargs)
        self.parent = parent

        # GUI components and functionalities

if __name__ == "__main__":
    root = tk.Tk()
    MainApplication(root).pack(side="top", fill="both", expand=True)
    root.mainloop()

class Navbar(tk.Frame):
    # Navigation bar implementation

class Toolbar(tk.Frame):
    # Toolbar implementation

class Main(tk.Frame):
    # Main content area implementation

class MainApplication(tk.Frame):
    def __init__(self, parent, *args, **kwargs):
        tk.Frame.__init__(self, parent, *args, **kwargs)

        self.navbar = Navbar(self, ...)
        self.toolbar = Toolbar(self, ...)
        self.main = Main(self, ...)

        # Packing and positioning of components