Slickness remix named Raptor is a modified version of the GTK theme 'Slickness'.
The GNOME desktop environment is an international open-source project that seeks to create a complete graphical user interface (GUI) for operating systems entirely from free software. This involves selecting application software for the desktop and working on the programs that handle application launching, file handling, and window and task management.
GNOME is part of the GNU Project and can be used with various Unix-like operating systems, particularly Linux, as well as in the Java Desktop System of Solaris. The name originally stood for GNU Network Object Model Environment, but this acronym is now deprecated.
The GNOME project emphasizes simplicity, usability, and making things "just work". The project intends to build a desktop that is responsive to user needs and can be used in multiple languages to provide a consistent user experience to a global audience. And with Raptor’s remix of the Slickness theme and its accompanying Raptor-Emerald theme, this could mean an even easier, more intuitive desktop environment for users everywhere.