Here's how you can install the Ambiance Crunchy themes in Ubuntu 14.04.
1. Open a terminal window.
2. Type in the following commands then hit Enter after each.
sudo add-apt-repository ppa:noobslab/themes
sudo apt-get update
sudo apt-get install ambiance-crunchy
Ambiance-Crunchy themes are inspired by original Ubuntu Ambiance and Radiance themes. You can apply these themes to Gnome-Shell, GTK, and Cinnamon. Ambiance-Crunchy themes set has four different variants and these are compatible with GTK 3.4/3.6/3.8/3.10, Gnome Shell 3.10/3.8/3.6/3.4/, XFCE, Openbox, LXDE and Cinnamon.More at Noobs Lab
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