Move wicd's icon to gnome-shell's status bar(top bar)

After I saw a extension of gnome-shell to move pidgin’s icon to the status bar, I tried to roll my own extension following the extension’s source to move the wicd’s icon to the status bar too. I followed the post Adding pidgin icon to gnome-shell status tray.

All I did is just to change the name of pidgin to wicd. After reboot my gnome-shell, it worked. Wicd’s icon appeared in status bar(top bar).

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