Fluxbox
Screenshot of fluxbox with a customized theme
Fluxbox is a window manager for the X Window System based on blackbox 0.61.1. It aims to be lightweight and highly customizable, with only minimal support for graphical iconss, and only basic interface style capabilities. The basic interface has only a task bar and a menu accessible by right-clicking on the desktop. Fluxbox also supports user created keyboard shortcuts.
In accordance with fluxbox's goal of simplicity, the main menu, the keyboard shortcuts and the basic configuration are all changed by editing text files. Fluxbox's themes are 100% compatible with those of blackbox. Colors, gradients, borders, and several other basic appearance attributes can be specified; recent versions of fluxbox support rounded corners and graphical elements. Fluxbox also has several features which blackbox lack, including tabbed windows, configurable titlebar.
Many experienced users prefer fluxbox over the GNOME and KDE desktop environments because of its speed and simplicity.
See also: Blackbox.