This is the Universal Termcap Interface, a terminal library similar to curses in purpose. It was originally written by Martin Mares . This instance is maintained by Petr Baudis (the changes include mainly the documentation addition). Compared to the ncurses library, this library offers simpler and more easy to use interface which can also make better use of modern terminals (e.g. no color limit). It is also more lightweight and provides faster and more efficient rendering optimizations.