The title bar is not displayed properly under dark theme

[Xiaokang2022]

• OS: Windows 10 22H2 (19045.4529)
• Python: 3.12.3
• pywinstyles: 1.8
• GUI Lib: tkinter

When using the dark theme, the title bar of the window is not dark, but looks like this:

When the window has undergone some operations, such as losing focus and regaining focus, or zooming, the title bar of the window will display normally:

[Akascape]

@Xiaokang2022 Try the optimised mode, or maybe add root.update() or root.focus_set().

[Xiaokang2022]

I tried the three methods you said, but they didn't work

[Xiaokang2022]

I have two computers, one with Windows 10 and the other with Windows 11. This issue doesn't occur on my Windows 11 computer. So this could be system-related? I want my program to work the same on both computers.

[Akascape]

@Xiaokang2022 Yes, it can be issue related to windows 10. But try different methods to solve this.

• root.withdraw() and root.deiconify()
• root.update_idletasks()

[Xiaokang2022]

@Xiaokang2022 Yes, it can be issue related to windows 10. But try different methods to solve this.

• root.withdraw() and root.deiconify()
• root.update_idletasks()

Maybe it's not a good solution, but it works, thanks!

[littlewhitecloud]

@Akascape It may cause by ExtendFrameIntoClientArea so the titlebar's color was mixed with the backrgound forcely.

I also have this issue on Windows 10.