Wrong Tomboy notes icon is used when launcher is added to the panel

[talltom]

When Tomboy notes application is added to panel by right-clicking and selecting "Add to panel" the old yellow icon is shown. However, when Tomboy is started as an application the new monochrome icon is used, Add to panel feature should use new monochrome icon.

Ubuntu 10.04.2 LTS
Tomboy 1.2.2-0ubuntu1

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: tomboy 1.2.2-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.32-32.62-generic 2.6.32.38+drm33.16
Uname: Linux 2.6.32-32-generic i686
Architecture: i386
Date: Mon Jul 18 22:39:46 2011
EcryptfsInUse: Yes
InstallationMedia: Ubuntu-Netbook 10.04 "Lucid Lynx" - Release i386 (20100429.4)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_GB.utf8
 SHELL=/bin/bash
SourcePackage: tomboy

[talltom (tall-tom)]

Update. To clarify: when Tomboy notes is opened and no current instance exists a Tomboy monochrome icon is added to the notification area. The old yellow icon referred to above relates to adding Tomboy to the panel.