CTkFrame

Example Code:

frame = customtkinter.CTkFrame(master=root_tk,
                               width=200,
                               height=200,
                               corner_radius=10)
frame.pack(padx=20, pady=20, sticky="nsew")

Arguments:

argument	value
master	root, Frame or Toplevel
width	slider width in px
height	slider height in px
border_width	width of border in px
fg_color	foreground color, tuple: (light_color, dark_color) or single color
bg_color	background color, tuple: (light_color, dark_color) or single color
border_color	border color, tuple: (light_color, dark_color) or single color

and all arguments of tkinter.Frame

Methods:

frame.configure(fg_color=..., bg_color=..., corner_radius=...)

and all methods of tkinter.Frame