Set mode to "ttkthemes", "ttkbootstrap", or something else for native widgets

lag.py

import tkinter.ttk as ttk
from random import random

mode = ""
numrows = 10
numcols = 5
pad = 5

if mode == "ttkthemes":
    from ttkthemes import ThemedTk
    root = ThemedTk(theme="adapta")
elif mode == "ttkbootstrap":
    from ttkbootstrap import Style
    root = Style(theme="lumen").master
else:
    import tkinter as tk
    root = tk.Tk()

widgets = []
for row in range(numrows):
    for column in range(numcols):
        entry = ttk.Entry(root)
        entry.grid(row=row, column=column, padx=pad, pady=pad)
        widgets.append(entry)


def fill():
    for entry in widgets:
        entry.delete(0, "end")
        entry.insert(0, round(random(), 2))


btn = ttk.Button(root, text="Fill", command=fill)
btn.grid(row=numrows, column=0, columnspan=numcols, pady=pad)

root.mainloop()