Moka Icon Theme
Moka Icon Theme is an open source, commercial, flat, minimal and freely distributed icon theme tailored specifically for the GNOME desktop environment. It is heavily inspired by the iOS 7 mobile operating system designed by Apple in California.
The icon theme includes a wide range of icons for almost any application or mime type used in the GNOME/Ubuntu desktop environments. This icon set can also be used on other open source desktop environments that are similar to GNOME, such as MATE and Cinnamon.
While designed from the offset to be minimal, using a flat style, simple geometry and colours, the Moka Icon Theme includes icons with pixel-perfect-design, providing several sizes for a better experience.
Installing the Moka Icon Theme
For detailed installation instructions please see the following tutorial created by Softpedia at http://news.softpedia.com/news/How-to-Install-GNOME-Themes-in-Ubuntu-11-10-231213.shtml.
Ubuntu users will be able to install this icon theme by executing the following commands in a Linux Terminal:
sudo add-apt-repository ppa:snwh/moka-icon-theme-daily
sudo apt-get update && sudo apt-get install moka-icon-theme moka-icon-theme-symbolic moka-icon-theme-extras
Officially supported distributions of Linux include Ubuntu, Linux Mint, Fedora, openSUSE, Arch Linux and elementary OS. While the icon theme is also officially supported on Android devices, it is available for download for free as a universal package for other GNU/Linux OSes.
Relies on the Faba Icon Theme
While Moka Icon Theme is one of the most comprehensive icon sets available for GNU/Linux operating systems today, the fact of the matter is that it relies on another icon set, called Faba Icon Theme, which serves as a base to Moka.
Users can submit suggestions for new icons to be included in the Moka Icon Theme package using the following form http://goo.gl/39uPJU. Please note that Moka Icon Theme costs money for some Linux distributions, so check out its official website for more details (see link below).