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@manufosela/theme-toggle

v2.0.1

Published

A light/dark theme toggle web component with smooth transitions, built with Lit

Downloads

87

Vulnerabilities

Powered byPowered by Snyk
  • 0High
  • 0Medium
  • 0Low

Links

Git

Maintainers

manufoselamanufosela

Keywords

web-componentlitthemetoggledark-modelight-modeui

Readme

@manufosela/theme-toggle

A light/dark theme toggle web component with smooth transitions and localStorage persistence. Built with Lit.

Installation

npm install @manufosela/theme-toggle

Usage

import '@manufosela/theme-toggle';
<theme-toggle></theme-toggle>

Features

  • Light/dark theme switching
  • Automatic system preference detection
  • localStorage persistence
  • Smooth transitions
  • Accessible (ARIA support)
  • CSS class and data-attribute integration

Attributes

| Attribute | Type | Default | Description | | ------------- | ------- | ------- | ------------------------------- | | theme | String | light | Current theme: 'light' or 'dark' | | persist | Boolean | true | Persist theme to localStorage | | storage-key | String | theme | localStorage key |

Methods

| Method | Description | | ---------------- | -------------------------- | | setTheme(theme)| Set theme to 'light' or 'dark' | | toggle() | Toggle between themes |

Events

| Event | Detail | Description | | -------------- | ---------------- | -------------------- | | theme-changed| { theme: string } | Fired on theme change |

themeToggle.addEventListener('theme-changed', (e) => {
  console.log('New theme:', e.detail.theme);
});

Document Integration

The component automatically:

  • Sets data-theme attribute on <html>
  • Adds/removes dark class on <html>

Use these in your CSS:

:root[data-theme="dark"] {
  --bg: #1f2937;
  --text: #f3f4f6;
}

/* Or using class */
.dark {
  --bg: #1f2937;
}

CSS Custom Properties

| Property | Default | Description | | ----------------------------- | --------- | ------------------------ | | --theme-toggle-padding | 4px | Container padding | | --theme-toggle-bg | #f3f4f6 | Background color | | --theme-toggle-radius | 9999px | Border radius | | --theme-toggle-button-size | 36px | Button size | | --theme-toggle-icon-size | 20px | Icon size | | --theme-toggle-active-bg | #fff | Active button background |

License

MIT