Niji is a cool system extension that changes your Mac's user interface. Features include custom windows, menus, pop-ups, scroll bars, buttons, icons, and more. Niji comes with several predefined appearances, such as "True NeXT" (a genuine NeXT-like interface), "Jump to Eight" (for System 7 users), "Back To Seven" (for nostalgic MacOS 8 users), "Grand Prix", "Waves", etc.
