[ubuntu] Ubuntu Tweak ... where are you?

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http://ubuntuforums.org – Currently I use Ubuntu 12.04. I wish to add Ubuntu Tweak's icon on my Top Panel. But since I used GNome w/o 3D effect desktop enviroment. I dunno where I can find the Ubuntu Tweak? The Ubuntu Tweak is able to be found if: * It was called from Dash. So it also means that I should using GNome Classic, Ubuntu 2D, and Ubuntu desktop environment. * It was called from Terminal. Please guide me how can I add Ubuntu Tweak icon in Top Panel, while I'm in GNome w/o 3D Effect desktop environment. Thank you. Even in Edit Menu or Software installed, I unable to find it (Hardware)