diff --git a/customtkinter/windows/ctk_tk.py b/customtkinter/windows/ctk_tk.py
index cc3c940..3d40e5c 100644
--- a/customtkinter/windows/ctk_tk.py
+++ b/customtkinter/windows/ctk_tk.py
@@ -1,4 +1,5 @@
 import tkinter
+import tkinterDnD
 from distutils.version import StrictVersion as Version
 import sys
 import os
@@ -12,8 +13,10 @@ from .widgets.appearance_mode import CTkAppearanceModeBaseClass
 
 from customtkinter.windows.widgets.utility.utility_functions import pop_from_dict_by_set, check_kwargs_empty
 
+TK_CLASS = tkinterDnD.Tk
 
-class CTk(tkinter.Tk, CTkAppearanceModeBaseClass, CTkScalingBaseClass):
+
+class CTk(TK_CLASS, CTkAppearanceModeBaseClass, CTkScalingBaseClass):
     """
     Main app window with dark titlebar on Windows and macOS.
     For detailed information check out the documentation.
@@ -35,7 +38,7 @@ class CTk(tkinter.Tk, CTkAppearanceModeBaseClass, CTkScalingBaseClass):
         self._enable_macos_dark_title_bar()
 
         # call init methods of super classes
-        tkinter.Tk.__init__(self, **pop_from_dict_by_set(kwargs, self._valid_tk_constructor_arguments))
+        TK_CLASS.__init__(self, **pop_from_dict_by_set(kwargs, self._valid_tk_constructor_arguments))
         CTkAppearanceModeBaseClass.__init__(self)
         CTkScalingBaseClass.__init__(self, scaling_type="window")
         check_kwargs_empty(kwargs, raise_error=True)
diff --git a/customtkinter/windows/widgets/ctk_slider.py b/customtkinter/windows/widgets/ctk_slider.py
index 3016a5c..abae543 100644
--- a/customtkinter/windows/widgets/ctk_slider.py
+++ b/customtkinter/windows/widgets/ctk_slider.py
@@ -199,15 +199,30 @@ class CTkSlider(CTkBaseClass):
                                         outline=self._apply_appearance_mode(self._button_color))
 
     def configure(self, require_redraw=False, **kwargs):
-        if "state" in kwargs:
-            self._state = kwargs.pop("state")
-            self._set_cursor()
+        if "corner_radius" in kwargs:
+            self._corner_radius = kwargs.pop("corner_radius")
+            require_redraw = True
+
+        if "button_corner_radius" in kwargs:
+            self._button_corner_radius = kwargs.pop("button_corner_radius")
+            require_redraw = True
+
+        if "border_width" in kwargs:
+            self._border_width = kwargs.pop("border_width")
+            require_redraw = True
+
+        if "button_length" in kwargs:
+            self._button_length = kwargs.pop("button_length")
             require_redraw = True
 
         if "fg_color" in kwargs:
             self._fg_color = self._check_color_type(kwargs.pop("fg_color"))
             require_redraw = True
 
+        if "border_color" in kwargs:
+            self._border_color = self._check_color_type(kwargs.pop("border_color"), transparency=True)
+            require_redraw = True
+
         if "progress_color" in kwargs:
             self._progress_color = self._check_color_type(kwargs.pop("progress_color"), transparency=True)
             require_redraw = True
@@ -220,20 +235,17 @@ class CTkSlider(CTkBaseClass):
             self._button_hover_color = self._check_color_type(kwargs.pop("button_hover_color"))
             require_redraw = True
 
-        if "border_color" in kwargs:
-            self._border_color = self._check_color_type(kwargs.pop("border_color"), transparency=True)
-            require_redraw = True
-
-        if "border_width" in kwargs:
-            self._border_width = kwargs.pop("border_width")
-            require_redraw = True
-
         if "from_" in kwargs:
             self._from_ = kwargs.pop("from_")
 
         if "to" in kwargs:
             self._to = kwargs.pop("to")
 
+        if "state" in kwargs:
+            self._state = kwargs.pop("state")
+            self._set_cursor()
+            require_redraw = True
+
         if "number_of_steps" in kwargs:
             self._number_of_steps = kwargs.pop("number_of_steps")
 
@@ -255,6 +267,10 @@ class CTkSlider(CTkBaseClass):
             else:
                 self._variable = None
 
+        if "orientation" in kwargs:
+            self._orientation = kwargs.pop("orientation")
+            require_redraw = True
+
         super().configure(require_redraw=require_redraw, **kwargs)
 
     def cget(self, attribute_name: str) -> any:
diff --git a/examples/simple_example.py b/examples/simple_example.py
index 6999cc0..588148a 100644
--- a/examples/simple_example.py
+++ b/examples/simple_example.py
@@ -28,7 +28,7 @@ button_1 = customtkinter.CTkButton(master=frame_1, command=button_callback)
 button_1.pack(pady=10, padx=10)
 
 slider_1 = customtkinter.CTkSlider(master=frame_1, command=slider_callback, from_=0, to=1)
-slider_1.pack(pady=10, padx=10)
+slider_1.pack(pady=10, padx=10))
 slider_1.set(0.5)
 
 entry_1 = customtkinter.CTkEntry(master=frame_1, placeholder_text="CTkEntry")