I'm unable to run Ubuntu Tweak. It seems to have a problem with Python or something, but I'm not sure.
Here is the output:
/usr/lib/python2.7/dist-packages/gi/overrides/Gtk.py:47: RuntimeWarning: You have imported the Gtk 2.0 module. Because Gtk 2.0 was not designed for use with introspection some of the interfaces and API will fail. As such this is not supported by the pygobject development team and we encourage you to port your app to Gtk 3 or greater. PyGTK is the recomended python module to use with Gtk 2.0 warnings.warn(warn_msg, RuntimeWarning) Gtk-Message: Failed to load module "rgba" Traceback (most recent call last): File "/usr/bin/ubuntu-tweak", line 53, in <module> from ubuntutweak.main import UbuntuTweakApp, UbuntuTweakWindow, show_splash File "/usr/lib/python2.7/dist-packages/ubuntutweak/main.py", line 31, in <module> from ubuntutweak.gui.dialogs import ErrorDialog File "/usr/lib/python2.7/dist-packages/ubuntutweak/gui/dialogs.py", line 21, in <module> from gi.repository import GObject, Gtk, Gdk, Pango, Vte File "/usr/lib/python2.7/dist-packages/gi/importer.py", line 76, in load_module dynamic_module._load() File "/usr/lib/python2.7/dist-packages/gi/module.py", line 222, in _load version) File "/usr/lib/python2.7/dist-packages/gi/module.py", line 90, in __init__ repository.require(namespace, version) gi.RepositoryError: Requiring namespace 'Gtk' version '3.0', but '2.0' is already loaded