It's a Font Awesome-based, customizable icon theme for Makagiga 4.8+, inspired by this blog text.
Colorization Enabled (default)
Colorization Disabled (see Makagiga settings)
Custom Icon Color
Custom Icon Color (dark Look and Feel theme)
To install this icon theme, click Tools -> Plugins -> Get More Plugins. You may also need to disable other installed Makagiga Icon Themes (e.g. Tango).