Gentoo is a graphical file management program, written from scratch in C. It uses the GTK+ toolkit for its interface. gentoo is developed and tested primarily under Linux, but is known to compile and work on many other Unix-like operating systems as well. One of the design goals with gentoo has been to provide extensive customization and configuration abilities, and to do so from an integrated, graphic, interface. The user should not have to edit the configuration file directly "by hand", and especially not have to restart the program for changes to take effect. gentoo features a fairly complex and powerful system for file type recognition, coupled to an object-oriented style system, which together give you a lot of control over how files of different types are displayed and acted upon.