How can you change Unity's theme from the command line?

bash themes

Solution 1:

Gtk-theme : 

gsettings set org.gnome.desktop.interface gtk-theme "YourGTKTheme"

Icon-theme : 

gsettings set org.gnome.desktop.interface icon-theme 'YourIconTheme'

Window-theme : 

gsettings set org.gnome.desktop.wm.preferences theme "YourWindowTheme"

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