There are efforts to port Sweetener to Gtk3[http://git.sugarlabs.org/sudoku/mainline.git], but at the moment it isn't possible thanks to the upstream bug [https://bugzilla.gnome.org/show_bug.cgi?id=652697 GNOME#652697].
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There are efforts to port Sweetener to Gtk3[http://git.sugarlabs.org/sudoku/mainline], but at the moment it isn't possible thanks to the upstream bug [https://bugzilla.gnome.org/show_bug.cgi?id=652697 GNOME#652697].