This is a more Macish theme. The original theme has been meticulously edited to make it look like Leopard. Credit for creating goes to the original author, Kim on whose work this theme is based upon.
The aim of this theme is to emulate Mac OS X Leopard interface.
The inactive titlebar transparency is because of the Emerald theme and the drop shadow is because of Compiz/Beryl. The icons used here are Leopard Icons from the Mac4Lin pack.
The whole pack can be downloaded from: http://sourceforge.net/projects/mac4lin
A new version 0.3 of Mac4Lin has just been released. Do check it out. Its bigger, better and more refined!
Download the project documentation (PDF) from the project website. It has instructions to shift the buttons on the left of title bar.