Slic3r converts digital 3D models into printing instructions (G-code) for your 3D printer. It cuts the model into horizontal slices (layers), generates toolpaths to fill them and calculates the amount of material to be extruded.

WMitime is clock dock app, which shows standard time, date. The unique feature is that it can also show Internet time with notation @TIME. See <http://www.swatch.com/> for more about Internet time.

Plymouth provides a boot-time I/O multiplexing framework - the most obvious use for which is to provide an attractive graphical animation in place of the text messages that normally get shown during boot. (The messages are instead redirected to a logfile for later viewing.) However, in event-driven boot systems Plymouth can also usefully handle user interaction such as password prompts for encrypted file systems.

Caja is the official file manager for the MATE desktop. This package adds extended functionality to the Caja file manager.