Refined - Social Media Icons Setup
This theme uses the Simple Social Icons Plugin, which can be obtained here or by searching in Dashboard > Plugins > Add New.
In the Widgets menu, drag the widget labeled “Simple Social Icons” into a widgetized area.
The demo displays them in the Primary Sidebar and Nav Social Menu widget areas.
Configure the widget by choosing a title, icon size and color, and the URLs to your social profiles.
Here is a screenshot of the settings used in the Refined demo: