Hide all YouTube player UI (buttons, spinner, shadows, ads, branding, related videos suggestions when the video ends) immediately and show them only on mouse hover.
Here is the updated "Features List" description, including the 3 new features (Ad hiding, Branding removal, and Transparent End Screens), followed by the updated UserScript code with a refined @description header.
Fixes YouTube's sluggish UI on videos.
- Instant Hiding: No more waiting 3 seconds for the title and bar to fade out.
- No More Spinner: Removes the annoying loading wheel that appears even when the video is playing.
- Cinematic View: Hides the top/bottom black shadow blur immediately.
- Distraction-Free: Hides suggested merchandise, "View Products" ads, and channel branding watermarks.
- Unobstructed Endings: Suggested video end-cards so they don't block the view, only appearing fully when you hover over them.
- Smart Control: UI instantly reappears only when you move your mouse.