diff --git a/async_tkinter_loop/mixins.py b/async_tkinter_loop/mixins.py
new file mode 100644
index 0000000..cabea16
--- /dev/null
+++ b/async_tkinter_loop/mixins.py
@@ -0,0 +1,24 @@
+import sys
+import tkinter
+
+from async_tkinter_loop import async_mainloop
+
+
+class AsyncTk:
+    def mainloop(self: tkinter.Tk):
+        async_mainloop(self)
+
+
+class AsyncCTk(AsyncTk):
+    def mainloop(self):
+        if not self._window_exists:
+            if sys.platform.startswith("win"):
+                self._windows_set_titlebar_color(self._get_appearance_mode())
+
+                if not self._withdraw_called_before_window_exists and not self._iconify_called_before_window_exists:
+                    # print("window dont exists -> deiconify in mainloop")
+                    self.deiconify()
+
+            self._window_exists = True
+
+        super().mainloop()
diff --git a/examples/custom_tkinter.py b/examples/custom_tkinter.py
new file mode 100644
index 0000000..7e4ef27
--- /dev/null
+++ b/examples/custom_tkinter.py
@@ -0,0 +1,32 @@
+import asyncio
+
+import customtkinter
+
+from async_tkinter_loop import async_handler
+from async_tkinter_loop.mixins import AsyncCTk
+
+
+class App(AsyncCTk, customtkinter.CTk):
+    def __init__(self):
+        super().__init__()
+        self.geometry("600x500")
+        self.title("Async CTk example")
+
+        # add widgets to app
+        self.button = customtkinter.CTkButton(self, command=self.button_click)
+        self.button.grid(row=0, column=0, padx=20, pady=10)
+
+        self.label = customtkinter.CTkLabel(self, text="")
+        self.label.grid(row=0, column=1, padx=20, pady=10)
+
+    @async_handler
+    async def button_click(self):
+        i = 0
+        while True:
+            i += 1
+            self.label.configure(text=str(i))
+            await asyncio.sleep(1.0)
+
+
+app = App()
+app.mainloop()
diff --git a/poetry.lock b/poetry.lock
index 9c4a4dc..31fc439 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -170,6 +170,34 @@ tomli = {version = "*", optional = true, markers = "python_full_version <= \"3.1
 [package.extras]
 toml = ["tomli"]
 
+[[package]]
+name = "customtkinter"
+version = "5.2.0"
+description = "Create modern looking GUIs with Python"
+optional = true
+python-versions = ">=3.7"
+files = [
+    {file = "customtkinter-5.2.0-py3-none-any.whl", hash = "sha256:f8b2db189959033539884d7faff99ebbb654c18097d761ed844180e32f0b5929"},
+    {file = "customtkinter-5.2.0.tar.gz", hash = "sha256:e93448a8d22121e20ec16e95960a8306e17cf7e0079766f5804b2e855e614937"},
+]
+
+[package.dependencies]
+darkdetect = "*"
+
+[[package]]
+name = "darkdetect"
+version = "0.8.0"
+description = "Detect OS Dark Mode from Python"
+optional = true
+python-versions = ">=3.6"
+files = [
+    {file = "darkdetect-0.8.0-py3-none-any.whl", hash = "sha256:a7509ccf517eaad92b31c214f593dbcf138ea8a43b2935406bbd565e15527a85"},
+    {file = "darkdetect-0.8.0.tar.gz", hash = "sha256:b5428e1170263eb5dea44c25dc3895edd75e6f52300986353cd63533fe7df8b1"},
+]
+
+[package.extras]
+macos-listener = ["pyobjc-framework-Cocoa"]
+
 [[package]]
 name = "exceptiongroup"
 version = "1.1.3"
@@ -557,9 +585,9 @@ files = [
 ]
 
 [extras]
-examples = ["Pillow", "httpx"]
+examples = ["Pillow", "customtkinter", "httpx"]
 
 [metadata]
 lock-version = "2.0"
 python-versions = "^3.8.1"
-content-hash = "c5edf309588851ce09170e48390c7e0854f8add001447f1eba0fcbe105329c8f"
+content-hash = "7947c61df06aedf2b948a680300acdcdeb897e2560cba03e9997fb83dea03489"
diff --git a/pyproject.toml b/pyproject.toml
index c8156b7..21fce7e 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -20,6 +20,7 @@ classifiers = [
 python = "^3.8.1"
 Pillow = {version = "^9.1.1", optional = true}
 httpx = {version = ">=0.23.1,<0.25.0", optional = true}
+customtkinter = {version = "^5.2.0", optional = true}
 
 [tool.poetry.group.dev.dependencies]
 pytest = "^7.4.0"
@@ -30,7 +31,7 @@ black = "^23.3.0"
 isort = "^5.11.5"
 
 [tool.poetry.extras]
-examples = ["httpx", "Pillow"]
+examples = ["httpx", "Pillow", "customtkinter"]
 
 [build-system]
 requires = ["poetry-core>=1.0.0"]