<ul><li>Developers upgrading to Tailwind CSS v4 faced challenges with dark mode customization.</li><li>Tailwind CSS v4 makes it easier to manage dark mode, reducing repetitive code and style duplication.</li><li>Migrating from v3 to v4 involves updating CSS using the new @theme syntax and defining light and dark mode styles in the same custom theme block.</li><li>Troubleshooting steps include ensuring proper class assignment, checking CSS loading order, confirming custom properties support, and using effective media queries for dark mode.</li></ul>

How to Implement Centralized Dark Mode Custom Theme in Tailwind CSS v4

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