How to add a new (custom) social icon
In order to add another social icon in your Gardenia theme, you should do the following (e.g. Pinterest):
1. Open \wp-content\themes\gardeniablog\theme-options\theme.options.php file in the text editor, such as Notepad++.
2. Add this piece of code after the line 102:
array( 'icon' => 'icon-pinterest-circled', 'url' => 'https://www.pinterest.com/'),
3. Save the changes and recheck them in the backend and frontend:
In such a way you may add any other social icon if you did not find it in the list of available ones.