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rc-theme-switcher

v1.0.4

Published

A simple Theme/Style Manager for React that allows switching between **light**, **dark**, and **custom themes**, supports **system preference**. Perfect for React projects of any size. It uses React Context API + localStorage to persist theme across sess

Readme

rc-theme-switcher

A simple Theme/Style Manager for React that allows switching between light, dark, and custom themes, supports system preference. Perfect for React projects of any size. It uses React Context API + localStorage to persist theme across sessions.


✨ Features

  • 🌙 Supports light/dark mode out of the box
  • 🖌️ Custom themes supported
  • 💾 Saves theme in localStorage
  • 🎨 Automatically detects system color scheme
  • ⚡ Simple hook API (useTheme)


Installation

Using npm:

npm install rc-theme-switcher

Using yarn:

yarn add rc-theme-switcher

Basic Usage

import React from "react";
import { ThemeProvider, useTheme } from "rc-theme-switcher";
import "rc-theme-switcher/dist/theme.css";

const ThemeSwitcherButton = () => {
  const { theme, toggleTheme } = useTheme();
  return <button onClick={toggleTheme}>Switch Theme (Current: {theme})</button>;
};

function App() {
  return (
    <ThemeProvider defaultTheme="light">
      <div>
        <h1>Hello Theme Switcher!</h1>
        <ThemeSwitcherButton />
      </div>
    </ThemeProvider>
  );
}

export default App;

🎯 API

ThemeProvider

Props:

defaultTheme (optional): "light" | "dark" | string (default: "light")

useTheme()

Returns:

theme: current theme name

toggleTheme(): switch between light/dark

setCustomTheme(name: string): set a custom theme

🛠️ How it works

On first load:

Checks localStorage for saved theme

If none found, matches system preference (prefers-color-scheme)

Updates <body data-theme="..."> for CSS usage

Advanced Usage

System Preference Auto Detection

<ThemeProvider defaultTheme="light" useSystemPreference>
  <YourAppComponents />
</ThemeProvider>

useSystemPreference prop enables automatic detection of the user's system theme (prefers-color-scheme).

Custom Themes

<ThemeProvider defaultTheme="light">
  <button onClick={() => setCustomTheme("blue")}>Blue Theme</button>
</ThemeProvider>

Define CSS for your custom theme:

:root[data-theme="light"] {
  --bg: #ffffff;
  --text: #000000;
}

:root[data-theme="dark"] {
  --bg: #1a1a1a;
  --text: #ffffff;
}

:root[data-theme="blue"] {
  --bg: #001f3f;
  --text: #ffffff;
}

body {
  background: var(--bg);
  color: var(--text);
}