How to personalize KDE menu?

Question

I would like to personalize the KDE menu. I would like to add the Ubuntu version and architecture on top of the menu

Example: Kubuntu 12.04 64bit Precise Pangolin

How to do it?

That's the menu I'm talking about:

Answer 1

KDE Menu / Kickoff

http://userbase.kde.org/Plasma/Kickoff:

Kickoff is the default application launcher of the Plasma desktop...

The Kickoff is a plasma widget. The plasma theme can be altered.

Plasma Themes

Earlier: How to change color/transparency of all desktop panels?

The KDE plasma objects are using the svg images. You could edit the images with a svg capable picture editor (Inkscape et. al.). The Kickoff ( http://techbase.kde.org/Projects/Plasma/Theme#Current_Theme_Elements ) has the

/kickoff.svgz :
background for the kickoff launcher, needs a frame, with the prefix 'plain'

and

/branding.svgz :

a little KDE logo that can be customized by distributors as a branding element. Contains a single element called brilliant

The Kubuntu is using:

/usr/share/kubuntu-default-settings/kde4-profile/default/share/apps/desktoptheme/default/widgets/branding.svgz

/usr/share/kubuntu-default-settings/kde4-profile/default/share/apps/desktoptheme/oxygen/widgets/branding.svgz

You could edit those or the plasma widgets C++ source.