1#Add Some Styles
2style=ttk.Style()
3#Pick a theme
4style.theme_use("default")
5#Configure Our Treeview colors
6style.configure("Treeview",
7 background="white",
8 foregroung="black",
9 rowheight=25,
10 fieldbackground="white"
11 )
12
13style.map('Treeview',
14 background=[('selected','blue')])