A GTK Theme Engine. The Xenophilia Theme Engine will after install be loaded automatically by all GTK+ programs as a module. The module will replace all of GTK's default rendering functions with its own and also install patches to the widget code that further alters the look and behaviour of GTK. The default look can best be described as a mix of NeXTStep, Windows 95, Amiga and old GTK, but as an engine you are able to redefine as much as without any engine. The purpose is to make a clean plain look that feels professional, unlike many extravagant themes for GTK. Note, that "gtkrc-themes" can still be based on this theme.