Using dark titlebar negates tkcalender style

[hariprasath112]

To make the title bar dark I use the below code

import ctypes as ct
window.update()
DWMWA_USE_IMMERSIVE_DARK_MODE = 20
set_window_attribute = ct.windll.dwmapi.DwmSetWindowAttribute
get_parent = ct.windll.user32.GetParent
hwnd = get_parent(window.winfo_id())
rendering_policy = DWMWA_USE_IMMERSIVE_DARK_MODE
value = 2
 value = ct.c_int(value)
 set_window_attribute(hwnd, rendering_policy, ct.byref(value), ct.sizeof(value))

But when I use the code, the combobox that contains Tkcalender loses its styles and shows up as normal unstyled combobox

Fo reference, This is what it looks like without using the above code,

I'll also add the DateEntry element's code

invoiceDateEntry=DateEntry(invoiceFrame,showothermonthdays=False,showweeknumbers=False,date_pattern='dd/mm/yyyy',month=(int(datetime.now().strftime('%m'))-1),year=(date.today().replace(day=1) - timedelta(days=1)).year)
invoiceDateEntry.grid(row=1,column=1,padx=30,pady=10, sticky="ew")
#invoiceNoEntry.bind('<Return>',lambda e: invoiceDateEntry.focus_set())

Calendar opened (Without dark titlebar code):

With Code:

The preset text is also white-colored, hence it is not visible. I use Sun Valley theme sv_ttk

[hariprasath112]

Found a way around to make it work. Used a library called ntkutils to set dark titlebar

 import ntkutils
 ntkutils.dark_title_bar(root)

then made the window close and restart itself with the below code

python = sys.executable
os.execl(python, python, * sys.argv)