NeueTube is a Safari Extension made by Qiming Weng which removes the clutter from YouTube pages and wraps it in a cinematic experience.
Neuetube runs solely on CSS/Javascript and uses zero images. Neat, huh? It works great on its own, but it’s even better when you combine it with YouTube5, a fantastic extension which converts YouTube’s Flash video into native HTML5 video.
You can find the release notes here.