Available settings:

• Change YouTube header logo
• Disable video previews when mouse over thumbnails
• Make the search-bar smaller and position to the left
• Grey-out thumbnails indicator for watched video
• Blur watched video thumbnails
• Hide category bar on homepage
• Hide category bar in "video up next column"
• auto collapse "guide" menu by default
• Customizable thumbnail size at home page
• Customizable thumbnail size in search
• Hide suggestion blocks
• Hide channel banners
• Change header logo target link
• Multiple static video player sizes to choose from
• Square Profile pictures
• Hide queue button when when mouse over thumbnail
• And a lot more! check the GUI screenshot belowfor