Strange grey line appearing tkinter when adding icon with root.iconbitmap-CodePudding

The

And if you look closely there is a strange grey line on the top right of the image.

It disappears if I comment out the line tkWindow.iconbitmap("icon.ico"):

Here is the file I'm using (icon.ico) if it's important to reproduce the MRE. https://wetransfer.com/downloads/26750bfab596b8bb74798c06a6c84e8820221228151614/3e2fe2

CodePudding user response：

I tried the your code with PNG image of same icon and added geometry for tkinter window, Grey line is disappeared

from tkinter import * from tkinter.ttk import * tkWindow = Tk() iconImage = PhotoImage(file = 'icon.png') #Set the Title of Tkinter window tkWindow.title("Icon With Underline") tkWindow.geometry("450x270") # Label Welcome text: str = f"Wedfghhhhhhhhjkllllll hojjjjjjjjj hjjjjjjjjj V1." label_welcome: tk.Text = tk.Text( tkWindow, height=3, width=len(text), background='SystemButtonFace', borderwidth=0 ) label_welcome.insert("current", text) label_welcome.grid(row=1, column=1, columnspan=2, pady=0) tkWindow.iconphoto(False,iconImage) mainloop()

CodePudding user response：

Replacing tkWindow.iconbitmap("icon.ico")

with

tkWindow.wm_iconbitmap("icon.ico") fixed the issue on a Windows 11 environment.

Could you check if this works for you?