How to change the color of the box surrounding a Tkinter Button?

问题

I tried some things I found on Stackoverflow such as placing a frame around the button and giving that a color, like said here. I also tried some other stuff that is said here but I can't get it to work.

I'm using Mac OS and the buttons are rounded, but there's a square around it which makes it look not as nice. Does anyone know how I can get this square to change its color?

This is the code I'm working with:

empty = Button(frame, text='Opnieuw', command=clear, font=bold_font)
empty.config(width=10, fg='#009688', borderwidth=0, relief=RAISED)
empty.grid(row=11, column=0, pady=(25, 0), padx=(80, 0))

This is the square I'm talking about: the white one which is around the button and does not have that green color.

After adding what Bryan Oakley said, by doing this:

empty = Button(frame, text='Opnieuw', command=clear, font=bold_font)
empty.config(width=10, fg='#009688', borderwidth=0, relief=RAISED)
empty.configure(highlightbackground="#009688")
empty.grid(row=11, column=0, pady=(25, 0), padx=(80, 0))

More specifically, this is a larger piece of the code I'm using:

from tkinter import *
from tkinter import font as tkfont

root = Tk()
root.config(background='#009688')
root.title('Contractmaker')

# GUI stuff that takes care of the scrollbar
def on_configure(event):
    canvas.configure(scrollregion=canvas.bbox('all'))

def on_mousewheel(event):
    canvas.yview_scroll(int(event.delta), 'units')

# Create some fonts
bold_font = tkfont.Font(weight='bold')

# Create the actual GUI
canvas = Canvas(root, width=450, height=550)
canvas.config(background='#009688')
canvas.pack(side=RIGHT)

scrollbar = Scrollbar(root, command=canvas.yview)
# scrollbar.pack(side=RIGHT, fill='y')

canvas.configure(yscrollcommand=scrollbar.set)
canvas.bind('<Configure>', on_configure)
canvas.bind_all('<MouseWheel>', on_mousewheel)

frame = Frame(canvas)
frame.config(background='#009688')
canvas.create_window((0,0), window=frame)

empty = Button(frame, text='Opnieuw', font=bold_font)
empty.config(width=10, fg='#009688', borderwidth=0, relief=RAISED)
empty.configure(highlightbackground='#009688')
empty.grid(row=11, column=0, pady=(25, 0), padx=(80, 0))

root.mainloop()

this is what I got:

Does anyone know how I can get the white part of the button to stay white instead of also changing its color? I'm using python 3.8 and Tkinter 8.6.

回答1:

That white area is called the traversal highlight region. It changes color to let the user know when the button has the keyboard focus.

You can change its non-focused color with the highlightbackground option, and its focused color with highlightcolor. You can set it to the color of the background to get it to blend in.

empty.configure(highlightbackground="#009588")

来源：https://stackoverflow.com/questions/62574558/how-to-change-the-color-of-the-box-surrounding-a-tkinter-button