jPDFNotes is a Java bean component which can be integrated into Java applications or deployed on the Web in an applet or using Java Web start. It allows users to mark up, review, and annotate PDF documents online. Most PDF annotations and features are supported, including graphical, sound, free text, typewriter, measurements (distance, perimeter, and area), file attachments, and bookmarks. All PDF fonts are supported (Types 0-3, OpenType, and TrueType).
ClassicMenu Indicator is a notification area applet (application indicator) for the top panel of Ubuntu's Unity desktop environment. It provides a simple way to get a classic GNOME-style application menu for those who prefer this over the Unity dash menu. Like the classic GNOME menu, it includes Wine games and applications if you have those installed.
tmux-applets is a collection of tmux "applets" that are designed to be used in tmux's status bar. They are non-textual, using blocks of color instead. Currently, there are two applets provided. tmux-cpu-freq displays the CPU frequency level as colored blocks, and tmux-ping, which tries to ping a host and displays success or failure as a colored block.