Here are some of the advanced customizations you can make to Ubuntu Unity 3D, 2D and Gnome Shell. Some of the notable changes include: Nautilus Thumbnail size, Icons on Menus and Buttons, changing the Media Player on Sound Menu, and editing the Gnome-Terminal shortcut keys. Install two programs: "dconf-tools", and "gconf-editor" sudo apt-get install dconf-tools gconf-editor Notable Changes: dconf-editor: org -- gnome -- nautilus -- iconview - thumbnail-size org -- gnome - desktop -- interface -- buttons-have-icons org -- gnome - desktop -- interface -- menus-have-icons org -- gnome - desktop -- interface -- document-font-name org -- gnome - desktop -- interface - monospace-font-name org -- com -- canonical -- indicator -- sound -- blacklist org -- com -- canonical -- indicator -- sound -- interested-media-player gconf-editor: apps -- gwd -- metacity_theme_active_opacity apps -- gwd -- metacity_theme_opacity apps -- gnome-terminal -- keybindings