參考資訊:
https://tkdocs.com/shipman/
https://www.pythontutorial.net/tkinter/tkinter-window/
main.py
import tkinter as tk
root = tk.Tk()
root.title('main')
root.geometry('300x300')
label = tk.Label(root, text = 'test', font = ('Monospace', 14), fg = '#ff0000', bg = '#000000')
label.pack()
root.mainloop()
執行
$ python3 main.py