sv-ttk

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 on this page — 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

sv-ttk on PyPI

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

Evidence: sv_ttk-2.6.1-py3-none-any.whl

Keywords: sv-ttk, tcl, tcl/tk, theme, tile, tk, ttk, tkinter, modern, fluent, dark-theme, sun-valley, windows-11, winui

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