Usage with Python

The sv_ttk package allows you to easily apply the Sun Valley theme to your Tkinter/ttk app.

You can install it with pip

pip install sv-ttk

Setting a theme

There are a two ways to set a theme.

You can use the use_dark_theme and use_light_theme to set dark or light theme.

import tkinter
from tkinter import ttk

import sv_ttk

root = tkinter.Tk()

button = ttk.Button(root, text="Button")
button.pack()

sv_ttk.use_dark_theme()
sv_ttk.use_light_theme()

root.mainloop()

With the set_theme function, you can specify which theme you want to use. It accepts dark or light as a parameter and throws an error in any other case.

import tkinter
from tkinter import ttk

import sv_ttk

root = tkinter.Tk()

button = ttk.Button(root, text="Button")
button.pack()

sv_ttk.set_theme("dark")

root.mainloop()

Toggling the theme

You can toggle between dark and light themes using the toggle_theme function. If the previous theme was not a Sun Valley theme, it will set to light theme.

import tkinter
from tkinter import ttk

import sv_ttk

root = tkinter.Tk()

button = ttk.Button(root, text="Toggle theme", command=sv_ttk.toggle_theme)
button.pack()

root.mainloop()

Querying the current theme

You can query the current theme with the get_theme method. If the Sun Valley theme is in use, it will return either dark or light, otherwise it will return the theme's name.

import tkinter
from tkinter import ttk

import sv_ttk

root = tkinter.Tk()

def toggle_theme():
    if sv_ttk.get_theme() == "dark":
        print("Setting theme to light")
        sv_ttk.use_light_theme()
    elif sv_ttk.get_theme() == "light":
        print("Setting theme to dark")
        sv_ttk.use_dark_theme()
    else:
        print("Not Sun Valley theme")

button = ttk.Button(root, text="Toggle theme", command=toggle_theme)
button.pack()

root.mainloop()