GNOME documentation :
- https://developer.gnome.org/ThemedIcons/
- https://developer.gnome.org/icon-theme-spec/
- https://developer.gnome.org/icon-naming-spec/

Freedesktop specification : http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html
GNOME specs : http://developer.gnome.org/gtk3/3.4/gtk3-Stock-Items.html#GTK-STOCK-ABOUT:CAPS
and after.

Script example to generate automatic links :
#!/bin/bash


# APPS

ln -s terminal.svg gnome-terminal.svg
ln -s terminal.svg lxterminal.svg
ln -s terminal.svg openterm.svg
ln -s terminal.svg utilities-terminal.svg
ln -s terminal.svg xfce-terminal.svg
ln -s lxfind.svg system-search.svg
ln -s lxscreenshot.svg applets-screenshooter.svg
ln -s system-software-installer.svg softwarecenter.svg
ln -s system-software-installer.svg synaptic.svg
ln -s system-software-installer.svg system-software-install.svg
ln -s system-software-installer.svg lubuntu-software-center.svg
ln -s galculator.svg accessories-calculator.svg