Windows 11 has introduced an upgraded dark mode in the Insider Preview Build 26220.6772 for the Dev Channel, which extends dark mode to more UI elements, including copy, move, and delete dialogs, progress bars, confirmation dialogs, and error dialogs. This enhancement aims to reduce the appearance of light-themed UI elements, decrease eye strain, and improve battery performance on OLED devices. The timeline for Samsung to roll out this upgraded dark mode to the stable channel is currently undisclosed.