These buttons were created by Divilinuz for KBFX originally. Modified and converted to GnoMenu 1.4+ compliance.
To install extract file. This will create the folder "steel" open that folder and copy the folders "steel-w2g" and "steel-y2o" to /usr/share/gnomenu/Themes/Button.
There are two additional buttons and the original svga file from divilinux in the stell folder as well.