Hi-Lights icons are fancy set of icons for Linux, which is made by Author olegvbal and available on gnome-look.org for other Linux distributions. This icon set looks very cool with any kind of theme, You can use these icons with dark themes and also with light themes. Now Hi-Light icons updated to 5.0 version: Latest version include 10300 icons. If you found any missing icons then report it to developer.

You can use Unity Tweak Tool, Gnome-tweak-tool or Ubuntu-Tweak to change icons.

To install Hi-Lights icons on Ubuntu/Linux Mint open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal:

Terminal Commands:
sudo add-apt-repository ppa:noobslab/icons
sudo apt-get update
sudo apt-get install hi-lights-icons

To install Hi-Lights icons in Previous Ubuntu/Linux Mint version open Terminal (Press Ctrl+Alt+T) and copy the following commands in the Terminal: