Customize Ubuntu 14.04. Download and install custom themes for Ubuntu 14.04. You can change the look and feel of Ubuntu 14.04 with these custom themes for Ubuntu 14.04.
Just like Windows, you can install and use custom themes in Ubuntu 14.04 PCs. You can either select from the pre-installed Ubuntu 14.04 themes or download and install custom themes for Ubuntu 14.04.
If you are not clear on “How to Customize Ubuntu – Install Ubuntu 14.04 Themes“, you can follow this tutorial.
By default, Ubuntu 14.04 comes with only 3 pre-loaded themes and 12 wallpapers.
Install Numix Theme in Ubuntu 14.04
Numix is the most popular theme for Ubuntu 14.04. The theme is flat theme with modern UI elements. The theme comes in two color variants – light and dark elements. The theme supports both, Unity and Gnome shell.
Install Numix Theme in Ubuntu 14.04
sudo add-apt-repository ppa:numix/ppa sudo apt-get update sudo apt-get install numix-gtk-theme numix-icon-theme-circle sudo apt-get install numix-wallpaper-notd
Mac OS X Lion Theme

The Mac OS X Lion theme comes with four themes and three icon sets and cursors. Type the following commands in the Terminal to install the Mac OS X Lion theme.
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install mac-ithemes-v3 sudo apt-get install mac-icons-v3
Once the theme is installed, activate the theme from tweak tool.
To Uninstall themes, icons and cursors, type the following Terminal commands:
cd /usr/share/icons/mac-cursors && sudo ./uninstall-mac-cursors.sh
sudo apt-get remove mac-ithemes-v3 mac-icons-v3
Install Gnomish Theme in Ubuntu 14.04

Gnomish theme for Ubuntu 14.04 is inspired from the original Ubuntu Gnome. The Gnomish theme comes in three colours: Beige, Grey and Dark.
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install gnomishbeige-theme
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install gnomishdark-theme
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install gnomishgrey-theme
Install Zukitwo Theme in Ubuntu 14.04

Zukitwo Theme support latest GTK (Gnome Shell: 3.12/3.10/3.8/3.6/3.4).
Install Zukitwo in Ubuntu 14.04 from PPA
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install zukitwo
Install Zukiwi Theme in Ubuntu 14.04
Zukiwi Theme for Ubuntu 14.04 is the modified version of the Zukitwo Theme. The Zukiwi Theme is based of flat design and can be used ofr Linux Ubuntu 14.04 and Linux Mint.
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install zukiwi
Install Ambiance Crunchy Theme in Ubuntu 14.04

Ambiance-Crunchy theme is inspired is by Ambiance Ubuntu theme. These Ambiance Crunchy theme comes in four color variations – Blue, Green, Grey and Orange. The Ambiance Crunchy theme is compatible with Ubuntu Unity and Gnome Shell 3.10/3.8/3.6/3.4/. The theme also supports GTK 3.4/3.6/3.8/3.10, XFCE, Openbox and Cinnamon.
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install ambiance-crunchy
Install Orchis theme in Ubuntu 14.04

Orchis theme is designed by Moka Project. The Orchis theme is a dark theme with round edge buttons and UI elements. The theme also comes with its own Moka Icons.
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install orchis3
Install Flattastic Theme in Ubuntu 14.04

Flattastic theme is flat theme for Ubuntu 14.04. The Flattastic theme comes in four different colors: blue, green, orange and red.
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install flattastic-suite
Install Trevilla Theme in Ubuntu 14.04
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Trevilla theme is inspired by the Windows Metro theme style. The Trevilla theme is designed by ninorpanama and is compatible with Gtk3 and Gtk 2. The theme comes in four color variants: Chrome, Dark, Gray and White.
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install trevilla-themes
Install Vimix Theme in Ubuntu 14.04

Vimix is another Ubuntu 14.04 theme which is inspired by the default Ubuntu theme. The theme is packed with beautiful UI elements and looks elegant. The Vimix theme comes in two colours: Dark and Light.
sudo add-apt-repository ppa:noobslab/themes sudo apt-get update sudo apt-get install vimix-flat-themes
