Chrome Dark Mode Extension with No Performance Hit

Older dark mode extensions use complex JavaScript to individually calculate the color of every element after the page loads, which heavily taxes your CPU and slows down scrolling.

To avoid this performance hit, you must use a tool built on Manifest V3. Modern Dark Mode uses native browser CSS injection rather than heavy JavaScript loops. This means the style recalculations happen at the browser engine level instantaneously. The result is a perfect dark theme with zero measurable impact on your memory or page load times.