如何在 Tkinter 中删除图像按钮的边框？

Question

我知道如何删除 Tkinter 按钮和图像的边框。它的完成方式与其他所有事情的完成方式几乎完全相同

borderwidth=0

我需要帮助，如果为什么，即使我将其放入小部件的“设计参数”中，它仍然有边框。

我的代码如下。

# Imports the tkinter library.
from tkinter import *
from tkmacosx import Button


selectedBackground = "black"
selectedForeground = "#22fd35"

root = Tk()
root.configure(bg=selectedBackground)

def openCipher():
    print("open cipher")


def openDecipher():
    print("open decipher")

cipherButton = Button(root, text="  Cipher  ", padx=40, pady=20, command=openCipher, borderwidth=0, background=selectedBackground, foreground=selectedForeground, highlightbackground=selectedForeground)
cipherButton.grid(row=1, column=0)
decipherButton = Button(root, text="Decipher", padx=40, pady=20, command=openDecipher, borderwidth=0, background=selectedBackground, foreground=selectedForeground, highlightbackground=selectedForeground).grid(row=1, column=2)
spacer1 = Label(root, text="     ", padx=10, pady=1, background=selectedBackground, foreground=selectedForeground, highlightbackground=selectedForeground).grid(row=4, column=1)
quitButton = Button(root, text="Exit d3cryptt", padx=10, pady=5, command=root.quit, borderwidth=0, background=selectedBackground, foreground=selectedForeground, highlightbackground=selectedForeground).grid(row=5, column=1)
spacer2 = Label(root, text="     ", padx=10, pady=1, background=selectedBackground, foreground=selectedForeground, highlightbackground=selectedForeground).grid(row=6, column=1, pady=30)

# changecolour = Button(root, text="change colour", padx=1, pady=5, background=selectedBackground, foreground=selectedForeground, highlightbackground=selectedForeground, command=lambda: changeColour(selectedBackground3, selectedForeground3)).grid(row=7, column=0)
theme1 = PhotoImage(file = "/Documents/theme1button.png")
theme1Button = Button(root, image=theme1, borderwidth=0, background=selectedBackground, command=openCipher)
theme1Button.place(x=50, y=100)

#Enter the event main loop
root.mainloop()

如果您想自己测试一下，这里是按钮的图像。 https://i.stack.imgur.com/OzB58.png

即使 borderwidth = 0，图像也会出现在屏幕上，周围有边框，如下图所示。

我不确定是否有任何其他解决方案可以解决此问题。我什至尝试将其从 .place 更改为 .grid，但它仍然有边框。

可能是因为它不在画布上，但我需要有人为我澄清这是否是问题所在。如果他们可以指导我如何做到这一点，或者提供有关如何做到这一点的有用视频，我将不胜感激。

我很感激给出的任何建议。

Answer 1

尝试突出显示厚度：

theme1Button = Button(root, image=theme1, borderwidth=0, highlightthickness=0, background=selectedBackground, command=openCipher)