light-themes padding value changes from 5 to 7 when window unfocused

Binary package hint: light-themes

I don't imagine it was an intentional design decision for normal_unfocused windows to have a padding value of 7 px, while normal_focused windows have a padding of 5 px. Why would they be different?
(see: /usr/share/themes/Ambiance/metacity-1/metacity-theme-1.xml)

And while in theory this simple difference of 2 pixels should never be noticed by regular users, it has triggered another bug which would otherwise have remained hidden (bug 772972).

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: light-themes 0.1.8.13
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
Date: Mon May 23 14:35:04 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release amd64 (20110427.1)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=en_AU:en
 LANG=en_AU.UTF-8
 SHELL=/bin/bash
SourcePackage: light-themes
UpgradeStatus: No upgrade log present (probably fresh install)