Missing Tango indicator applet icon

Binary package hint: tango-icon-theme

First install the package "tango-icon-theme" which isn't installed by default. I'm currently using the version 0.8.90-3.
Right click on the desktop.
Click "Change desktop background".
Click the "Theme" tab.
Click "Customize..."
Click "Icons" tab in the newly opened window.
Choose Tango from the list and see the indicator applet icon be replaced by a red cross within a white box which I presume is because there is no icon to use for this.

ProblemType: Bug
Architecture: amd64
Date: Wed Sep 30 22:41:00 2009
Dependencies: hicolor-icon-theme 0.10-2
DistroRelease: Ubuntu 9.10
NonfreeKernelModules: nvidia
Package: tango-icon-theme 0.8.90-3
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=en_DK.UTF-8
 SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.31-11.36-generic
SourcePackage: tango-icon-theme
Uname: Linux 2.6.31-11-generic x86_64