A windows switcher, application launcher, and dmenu replacement.
Rofi started as a clone of simpleswitcher, written by Sean Pringle - a
popup window switcher roughly based on superswitcher. Simpleswitcher laid
the foundations, and therefore Sean Pringle deserves most of the credit for
this tool. Rofi (renamed, as it lost the simple property) has been extended
with extra features, like an application launcher and ssh-launcher, and can
act as a drop-in dmenu replacement, making it a very versatile tool.