It's a tiling window manager (it resize and move the windows only) with no-animations, written in C++, only for windows systems, you can set your window several modes:
You can also resize the window as a fourth of the screen with a combination of ctrl + alt + right-arrow
or ctrl + alt + left-arrow
and ctrl + alt + top-arrow
or ctrl + alt + bottom-arrow
as showed below:
(WARNING: some windows may be not resize correctly)