MetroSTEP - Windows 8 style meets WindowMaker functionality.
This is mostly for myself, in case my HDD ever goes out and I need to download it again. Do not expect anything other than what is packaged. Works perfectly for me on a small screen ThinkPad with the GTK+ Adwaita theme. YMMV.
Thanks to the author of the "Next" theme and the author of the "Win8-FirstTry" theme for inspiration.