Sonorous is a fullscreen blogging theme with infinite scrolling and background slideshows/videos built in. Not only for Page templates, you can have fullscreen background slideshows and videos for blog posts as well. Suitable for media-heavy blogs focused on building a community of tight knit users, logging into your site is made easier via the log in button in the header. When clicked, the log in button shows the hidden log in area for on page log in. To top it off, this theme is mobile friendly.