Скачать или смотреть Custom Tkinter - 7

import customtkinter as ctk

ctk.set_appearance_mode("Light")

root = ctk.CTk()
root.geometry("300x300")
root.title("Combo Box")

def change_color(color):
root.configure(fg_color=color)


colors = ["white", "violet", "indigo", "blue", "green",
"yellow", "orange", "red"]
combo_box = ctk.CTkComboBox(root,
values=colors,
command=change_color,
height=30,
width=150,
border_width=2,
corner_radius=20,
button_color="purple",
button_hover_color="aqua",
dropdown_hover_color="turquoise",
justify="center")
combo_box.pack(pady=40)

enter_btn = ctk.CTkButton(root, text="Change Color", fg_color="black", command=lambda: change_color(combo_box.get()))
enter_btn.pack(pady=20)

root.mainloop()