upgrade to quantal results in some excessively large menu icons

[ԜаӀtеr Ⅼарсһуnѕkі]

ThinkPad R60 running 12.04. Upgraded via do-release upgrade -d to 12.10. Upon the upgrade, several non-natively Lubuntu programs had excessively large icons. A perfect example is amsynth, which is not only a great synthesizer, but its icon is unquestionably great in size. Isn't there a maximum icon size in Lubuntu? If not, should add to the wishlist. However, I'm thinking it already does, or did. Why did it not have this problem with 12.04 but now does with 12.10?

ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: lxpanel 0.5.10+git20120823-0ubuntu1
ProcVersionSignature: Ubuntu 3.5.0-26.42-generic 3.5.7.6
Uname: Linux 3.5.0-26-generic i686
ApportVersion: 2.6.1-0ubuntu10
Architecture: i386
Config_Home_Lubuntu:
 [Command]
 FileManager=pcmanfm %s
 Terminal=lxterminal -e
 Logout=lubuntu-logout
Date: Sun Mar 17 17:28:19 2013
EcryptfsInUse: Yes
InstallationDate: Installed on 2011-11-06 (497 days ago)
InstallationMedia: Lubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111011)
MarkForUpload: True
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: lxpanel
UpgradeStatus: Upgraded to quantal on 2013-03-16 (1 days ago)