Closing the Dark Mode Gap: Why Browser UI Won't Follow Your Manual Toggle

Many developers implementing manual dark mode toggles overlook the color-scheme CSS property, causing native browser elements like scrollbars and form controls to remain in light mode while custom content switches to dark. This visual disconnect creates a jarring, unpolished experience that signals poor attention to detail. Understanding how color-scheme interacts with theme toggles is a simple yet critical fix that separates professional implementations from broken ones.