Theme Selector Component

The Theme Selector component provides seamless dark mode functionality for your Astro website. Built as a Web Component, it intelligently handles theme detection, persistence, and switching while maintaining a smooth user experience.

Overview

Key Features

• System Theme Detection: Automatically matches user’s system preferences

• Theme Persistence: Remembers user’s choice across sessions

• Smooth Transitions: Animated theme switching

• Code Highlighting: Automatic syntax theme switching

Implementation

Basic Usage

Add the Theme Selector to your layout with a single line, the script to manange the theme selector is found in the Head Component.

1
<ThemeSelector />

Best Practices

1. Theme Implementation

   • Place the selector in consistent locations
   • Maintain sufficient contrast in both themes
   • Test all interactive elements in both modes
   • Consider transition animations

2. User Experience

   • Respect system preferences initially
   • Persist user choices
   • Provide clear visual feedback
   • Ensure smooth transitions

3. Performance

   • Prevent flash of incorrect theme
   • Optimize theme assets loading