The color backgrounds on items in the lists for is distracting. Esp since they are seemingly pseudo-random from a pallet, and so although my top-level library choices dont change they colored background the the items are often different on each launch. Since colors don't add any information, please drop and revert to black/overall background like web-client.
Still no playlists showing up.
Trailers images are stretched to thumbnail shape unless Image Enhancements are enabled. Other places in the interface where there are mixed thumbnails and poster the posters are displayed OK. Consider making the trailers list poster aspect ratio instead of thumbnail. (Like movies by letter)