---
id: sv-ttk
version: "2.6.1"
license: MIT
license_treatment: permissive
maintenance: aging
---

# sv-ttk — A gorgeous theme for Tkinter, based on Windows 11's UI

License: permissive · Maintenance: aging · Downloads: 77.3K/mo

## What it is and what it does

sv-ttk is a visual theme package for Python's Tkinter library that applies a modern, Windows 11-inspired design to ttk (themed Tkinter) widgets. It provides dark and light color schemes and can be activated with a single `set_theme()` call. The package is intentionally minimal—it has no runtime dependencies and installs as a pure Python wheel.

The theme applies only to themable ttk widgets and does not affect regular Tkinter widgets, though the color scheme influences their appearance. The package is designed to integrate easily with other libraries; the documentation shows examples of detecting system theme preference and applying platform-specific styling on Windows.

Use it for:

- Create a modern-looking desktop application with dark mode support without writing custom widget styling.
- Quickly prototype a Tkinter GUI that matches contemporary UI design expectations.
- Apply a consistent, professional appearance across multiple ttk widgets in an existing application.
- Build cross-platform Tkinter apps that adapt to system theme preference.

## Worth the install?

AI-flagged interpretation of the facts above — verify before relying.

Applies a modern, Windows 11-inspired visual theme to Tkinter ttk widgets with a single function call, supporting both dark and light modes.

Yes, if you are building Tkinter applications and want a modern appearance with minimal effort. The package is lightweight, has no dependencies, and carries permissive licensing. The aging maintenance status (432 days since last release) is a minor concern but not a blocker—the repository remains active and the package is stable. Install it if you need a ttk theme; skip it if you require custom widget styling beyond what a theme provides.

## Install

pip install sv-ttk
uv add sv-ttk
poetry add sv-ttk

## Installing sv-ttk

Before you install: Low friction: pure Python wheel with no runtime dependencies. Maintenance is aging—last release was 432 days ago, though the repository remains active with 2572 stars.

License in practice: MIT license permits unrestricted use, modification, and distribution in both open and closed projects with minimal obligations.

Quickstart:

pip install sv-ttk

import tkinter
from tkinter import ttk
import sv_ttk

root = tkinter.Tk()
button = ttk.Button(root, text="Click me!")
button.pack()
sv_ttk.set_theme("dark")
root.mainloop()

Verify before relying:

- Whether the theme works correctly with all ttk widget types or only a subset.
- Performance impact when applying the theme to large numbers of widgets.
- Compatibility with custom ttk styles or whether the theme overrides them entirely.

## Package facts

- License: MIT (permissive)
- Python support: supports_current
- Install friction: low
- Maintenance: aging
- Downloads: 77.3K/month (top 15,000 on PyPI)
- Known vulnerabilities: none known

## Tags

tkinter theme, ttk theme modern, dark mode tkinter, windows 11 ui tkinter, fluent design tkinter, tkinter styling, gui theme python, tkinter-theme, ui-styling, dark-mode

[View on SkillFed](https://skillfed.io/packages/sv-ttk) · [View on PyPI](https://pypi.org/project/sv-ttk/)