Add dark mode theme persistence script to VitePress config#65
Merged
Conversation
Add blocking inline script to <head> that applies the dark class immediately before VitePress's own appearance script runs. This prevents the flash-of-light-theme when a visitor's OS prefers light mode but the site default is dark. https://claude.ai/code/session_014BemMGykQoZYFErMakRahp
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Added a script to the VitePress head configuration that persects the user's theme preference (dark/light mode) by reading from localStorage and applying the appropriate CSS class on page load.
Key Changes
localStorageusing the key'vitepress-theme-appearance''dark'class to the document root element if the stored preference is not'light'Implementation Details
The script uses an IIFE (Immediately Invoked Function Expression) to avoid polluting the global scope and runs before the page content is rendered, ensuring the correct theme class is applied before any styles are evaluated. This prevents the common "flash of wrong theme" issue that occurs when theme preference is only applied after the DOM is fully loaded.
https://claude.ai/code/session_014BemMGykQoZYFErMakRahp