Tried to port Sona... Because of the limited capabilities of Openbox it doen't look like the Original, but I tried my best. I'm not very happy with the result, but some people liked it, so I'm still going to release it.
Openbox is a free, stacking window manager for the X Window System, licensed under the GNU General Public License. Originally derived from Blackbox 0.65.0, Openbox has now been totally re-written in the C programming language and since version 3.0 is no longer based upon any code from Blackbox. Wikipedia