What is "razor-qt"

Razor-qt is a now defunct free desktop environment for personal computers. Razor merged with LXDE, another project with similar scope and has been perpetuated as LXQt.

The developers describe Razor-qt as "an advanced, easy-to-use, and fast desktop environment based on Qt 4 and has not been ported to Qt 5. It has been tailored for users who value simplicity, speed, and an intuitive interface. Unlike most desktop environments, Razor-qt also works fine with weak machines."