如何更改按钮边框的颜色 tkinter

Question

How do i change the colour of a border in tkinter

I have looked at other solutions which recommended using highlightcolor and highlightbackground , however these did not work.

excercises_button = Button(canvas, width=327, height=150, image=dumbell_img,borderwidth=4, relief="ridge", bg = "gray55", command = Excercises)
canvas_excercises_button = canvas.create_window(168, 724, window=excercises_button)

I would like the border of this button to be orange.

This is what it currently looks like: https://i.stack.imgur.com/3QX8X.png

Answer 1

Here is an example of how one can have a kind of border created by using a frame and a button.

import tkinter as tk

root = tk.Tk()

frame = tk.Frame(root, highlightbackground="orange", highlightcolor="orange", highlightthickness=4, bd=0)
frame.grid(row=0, column=0)
# adding weights so the button is center on the frame.
frame.columnconfigure(0, weight=1)
frame.rowconfigure(0, weight=1)

btn = tk.Button(frame,text="test", borderwidth=4, relief="ridge", bg = "gray55").grid(row=0, column=0)
root.mainloop()

Results:

Answer 2

I found a solution!

What i did is I created a rectangle which surrounded the buttons.

canvas.create_rectangle(0, 638, 1100, 900, fill=colour)

I then made the three buttons a few pixels smaller to allow the background of the rectangle to show.

Answer 3

Since this is the top answer on a google search, i will share the method found on the duplicate of this question :
(code refactored to work with python 3.10)

from tkinter import ttk,Tk
root = Tk()

style = ttk.Style(root)
style.theme_use('clam')
style.configure('my.TButton', bordercolor="red")

ttk_button = ttk.Button(root, text='Button', style='my.TButton')
ttk_button.pack()

root.mainloop()

Resulting window
this code works because certain ttk themes allow changing the border color on buttons.