gnome-dust-icon-theme software package provides chocolate variation of the GNOME-Colors icon theme, you can install in your Ubuntu 12.04 LTS (Precise Pangolin) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gnome-dust-icon-theme
gnome-dust-icon-theme is installed in your system.
Make ensure the gnome-dust-icon-theme package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnome-dust-icon-theme *
You will get with gnome-dust-icon-theme package name, version, architecture and description in a table
| Distro | Ubuntu 12 04 lts precise pangolin |
| Section | GNOME |
| Package | gnome-dust-icon-theme |
| Version | 5.5.1-1ubuntu1 |
| Description | chocolate variation of the GNOME-Colors icon theme |
| Sub Section | GNOME |