I know that Tkinter is not so modern, not so cool and maybe better to use PyQt or etc.
But it is interesting for me can Tkinter look not so ugly in Ubuntu (Linux). Looks
To use ttk you have to import it.
from tkinter import * from tkinter import ttk
After that you should use tkinter widgets like this-label=ttk.Label() or button = ttk.Button()
label=ttk.Label()
button = ttk.Button()