I have two methods that create and use tkinter windows with sv_ttk dark theme. One method, which consists of text box, scrollbar, and button, works perfectly. The second method, which consists of entries, labels, and a button, dark theme does not work at all. The windows are called the exact same way and the windows aren't used outside the method that creates and destroys them. # Create root window, make it appear on top, and set title root = tk.Tk() root.attributes('-topmost', True) root.title("User Input") # Set dark theme sv_ttk.set_theme('dark') Any idea why the entry/label method doesn't apply dark theme? Continue reading...