
You can redistribute and/or modify it under the terms of the GNU Public License, version 2 (GPLv2). The cushion shading additionally brings out the directory structure. The color of a rectangle indicates the type of the file, as shown in the extension list. So their area is proportional to the size of the subtrees.

The rectangles are arranged in such a way, that directories again make up rectangles, which contain all their files and subdirectories. The treemap represents each file as a colored rectangle, the area of which is proportional to the file's size.
DISK GRAPH INSTALL
Note: if you are looking for an alternative for Linux, you are looking for KDirStat ( apt-get install kdirstat or apt-get install k4dirstat on Debian-derivatives) or QDirStat and for MacOS X it would be Disk Inventory X or GrandPerspective. WinDirStat is a disk usage statistics viewer and cleanup tool for various versions of Microsoft Windows. Latest version: 1.1.2 Windows Directory Statistics Right click User Defined -> New -> Data Collector Set.

WinDirStat - Windows Directory Statistics Open Windows Performance Monitor (Win-R -> type 'perfmon.exe' -> Enter) In the left-most pane, double click Data Collector Sets.
