Youtube Fullscreen Brighter - 全螢幕開燈 is a Chrome add-on developed by dw3lin. It falls under the category of Browsers and specifically the subcategory of Add-ons & Tools. This add-on aims to remove the Youtube overlay when in full-screen mode, providing a cleaner and brighter viewing experience.

With Youtube Fullscreen Brighter - 全螢幕開燈, users can enjoy watching videos on Youtube without the distraction of the overlay that appears when in full-screen. This add-on removes the title and shadow that usually appear when the mouse is moved while in full-screen mode. By eliminating these elements, users can focus solely on the video content, enhancing their viewing experience.

Overall, Youtube Fullscreen Brighter - 全螢幕開燈 is a useful Chrome add-on for those who prefer a cleaner and more immersive full-screen experience on Youtube. It efficiently removes the overlay elements, allowing users to enjoy their favorite videos without any distractions.