sakura is a terminal emulator based on GTK and VTE. It's a terminal emulator with few dependencies, so you don't need a full GNOME desktop installed to have a decent terminal emulator. As far as i know, the only terminal emulators based on VTE are gnome-terminal, XFCE Terminal, and a small sample program included in the vte sources. Sakura differences from the last one is that it uses a notebook to provide several terminals in one window and adds a contextual menu with some basic options - no more no less.