diff --git a/customtkinter/customtkinter_checkbox.py b/customtkinter/customtkinter_checkbox.py
index 1ab99fc..4698214 100644
--- a/customtkinter/customtkinter_checkbox.py
+++ b/customtkinter/customtkinter_checkbox.py
@@ -328,9 +328,7 @@ class CTkCheckBox(tkinter.Frame):
 
     def select(self, from_variable_callback=False):
         self.check_state = True
-        self.canvas.itemconfig("inner_parts",
-                               fill=CTkThemeManager.single_color(self.fg_color, self.appearance_mode),
-                               outline=CTkThemeManager.single_color(self.fg_color, self.appearance_mode))
+        self.draw()
 
         if self.function is not None:
             self.function()
@@ -342,9 +340,7 @@ class CTkCheckBox(tkinter.Frame):
 
     def deselect(self, from_variable_callback=False):
         self.check_state = False
-        self.canvas.itemconfig("inner_parts",
-                               fill=CTkThemeManager.single_color(self.bg_color, self.appearance_mode),
-                               outline=CTkThemeManager.single_color(self.bg_color, self.appearance_mode))
+        self.draw()
 
         if self.function is not None:
             self.function()
diff --git a/customtkinter/customtkinter_draw_engine.py b/customtkinter/customtkinter_draw_engine.py
index ac0f52d..242f4dc 100644
--- a/customtkinter/customtkinter_draw_engine.py
+++ b/customtkinter/customtkinter_draw_engine.py
@@ -639,7 +639,7 @@ class CTkDrawEngine:
         requires_recoloring = False
 
         if self._rendering_method == "polygon_shapes" or self._rendering_method == "circle_shapes":
-            x, y, radius = width / 2, height / 2, size / 2.2
+            x, y, radius = width / 2, height / 2, size / 2.8
             if not self._canvas.find_withtag("checkmark"):
                 self._canvas.create_line(0, 0, 0, 0, tags=("checkmark", "create_line"), width=round(height / 8), joinstyle=tkinter.MITER, capstyle=tkinter.ROUND)
                 self._canvas.tag_raise("checkmark")
@@ -647,8 +647,8 @@ class CTkDrawEngine:
 
             self._canvas.coords("checkmark",
                                 x + radius, y - radius,
-                                x - radius / 4, y + radius,
-                                x - radius, y + radius / 4)
+                                x - radius / 4, y + radius * 0.8,
+                                x - radius, y + radius / 6)
         elif self._rendering_method == "font_shapes":
             if not self._canvas.find_withtag("checkmark"):
                 self._canvas.create_text(0, 0, text="Z", font=("CustomTkinter_shapes_font", -size), tags=("checkmark", "create_text"), anchor=tkinter.CENTER)
diff --git a/examples/complex_example.py b/examples/complex_example.py
index 037091c..38129f8 100644
--- a/examples/complex_example.py
+++ b/examples/complex_example.py
@@ -6,8 +6,6 @@ import sys
 customtkinter.set_appearance_mode("System")  # Modes: "System" (standard), "Dark", "Light"
 customtkinter.set_default_color_theme("blue")  # Themes: "blue" (standard), "green", "dark-blue"
 
-customtkinter.CTkSettings.preferred_drawing_method = "circle_shapes"
-
 
 class App(customtkinter.CTk):
 
@@ -187,6 +185,7 @@ class App(customtkinter.CTk):
         self.slider_1.set(0.2)
         self.slider_2.set(0.7)
         self.progressbar.set(0.5)
+        self.check_box_2.select()
 
     def button_event(self):
         print("Button pressed")