Theme Switcher - Kivy Typing CST Test

Theme Switcher — Kivy Code

Demonstrates theme switching between light and dark using canvas colors.

from kivy.app import App
from kivy.uix.boxlayout import BoxLayout
from kivy.uix.button import Button
from kivy.graphics import Color, Rectangle

class ThemeApp(App):
	def build(self):
		self.dark = False
		self.layout = BoxLayout()
		self.button = Button(text='Switch Theme', on_press=lambda x: self.toggle_theme())
		self.layout.add_widget(self.button)
		self.update_bg()
		return self.layout

	def update_bg(self):
		self.layout.canvas.before.clear()
		with self.layout.canvas.before:
		Color(0.1, 0.1, 0.1) if self.dark else Color(1, 1, 1)
		Rectangle(size=self.layout.size, pos=self.layout.pos)

	def toggle_theme(self):
		self.dark = not self.dark
		self.update_bg()

if __name__ == '__main__':
	ThemeApp().run()

Kivy Language Guide

Kivy is an open-source Python framework for building cross-platform multitouch applications on Android, iOS, Windows, macOS, Linux, and Raspberry Pi. It provides a UI toolkit, gesture support, animations, layouts, and a declarative KV language for rapid app development.

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