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https://github.com/rdbende/sun-valley-ttk-theme

A gorgeous theme for Tkinter/ttk, based on the Sun Valley visual style ✨
https://github.com/rdbende/sun-valley-ttk-theme

awesome dark-theme fluent gorgeous modern python python-gui sun-valley sv-ttk tcl-tk theme tk tkinter tkinter-gui ttk ui windows-11 windows11 winui winui3

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A gorgeous theme for Tkinter/ttk, based on the Sun Valley visual style ✨

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README 

        


  

# Sun Valley ttk theme

Make your Tkinter application look better than ever with just two lines of code!



![Screenshot of Sun Valley ttk theme](assets/screenshot.png)






## Installation [![PyPi downloads](https://static.pepy.tech/badge/sv-ttk)](https://pypi.org/project/sv-ttk)

The theme is easily installable as a Python package



```

pip install sv-ttk

```



## Usage [![Documentation](https://img.shields.io/badge/-documentation-%23c368c4)](https://github.com/rdbende/Sun-Valley-ttk-theme/wiki/Usage-with-Python)

> [!NOTE]

> The theme will only be applied to themable (`tkinter.ttk`) widgets, and not with the regular Tkinter widgets, they only benefit from the colorscheme.



For detailed documentation, visit the [wiki page](https://github.com/rdbende/Sun-Valley-ttk-theme/wiki/Usage-with-Python).



```python

import tkinter

from tkinter import ttk



import sv_ttk



root = tkinter.Tk()



button = ttk.Button(root, text="Click me!")

button.pack()



# This is where the magic happens

sv_ttk.set_theme("dark")



root.mainloop()

```



## Tips and tricks

Our intention is to keep the `sv-ttk` package as simple as possible, while making it easy to integrate with other libraries.



### Set the theme to the system theme

You can use the [darkdetect](https://github.com/albertosottile/darkdetect) package to detect the system color scheme. Here's an example:



```python

import darkdetect



sv_ttk.set_theme(darkdetect.theme())

```



It's only a matter of an extra import and passing the result of `darkdetect.theme()` to `sv_ttk.set_theme()`. It's that easy!



### Dark mode title bar on Windows

The Sun Valley theme doesn't change the title bar color on Windows when the theme is set to dark. You can use [pywinstyles](https://github.com/Akascape/py-window-styles) to achieve this. Here's an example:

  

```python

import pywinstyles, sys



def apply_theme_to_titlebar(root):

    version = sys.getwindowsversion()



    if version.major == 10 and version.build >= 22000:

        # Set the title bar color to the background color on Windows 11 for better appearance

        pywinstyles.change_header_color(root, "#1c1c1c" if sv_ttk.get_theme() == "dark" else "#fafafa")

    elif version.major == 10:

        pywinstyles.apply_style(root, "dark" if sv_ttk.get_theme() == "dark" else "normal")



        # A hacky way to update the title bar's color on Windows 10 (it doesn't update instantly like on Windows 11)

        root.wm_attributes("-alpha", 0.99)

        root.wm_attributes("-alpha", 1)



# Example usage (replace `root` with the reference to your main/Toplevel window)

apply_theme_to_titlebar(root)

```



Note that on Windows 10, due to its limitations, you can only set the title bar's color to black for dark mode and white for light mode. On Windows 11 the title bar can be set to any color.



> [!WARNING]

> The `apply_theme_to_titlebar` works on Windows only, so you should check whether the platform is Windows before calling this function.



Here's how the windows look after calling `set_title_bar_color()`:



  Screenshots

  


    Windows 10

    


    

    



    Windows 11

    


    

  



## Wanna see more?

Check out my other ttk themes!

- The [Azure ttk theme](https://github.com/rdbende/Azure-ttk-theme)

- The [Forest ttk theme](https://github.com/rdbende/Forest-ttk-theme)