broken icons with faenza theme

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http://askubuntu.com – I just installed ubuntu 12.10 but i have an issue I installed faenza icon theme with this way : http://handytutorial.com/install-faenza-icons-ubuntu-12-10/ but when i switch to faenza theme from gnome tweak tool some icons are broken. For example i attach screenshots : http://i.stack.imgur.com/Eem1k.png http://i.stack.imgur.com/InZLZ.png Any idea why this happens ? (HowTos)