Need help in the process of creating your own WordPress theme?
To create an extension, just create a directory with the name of the extension in any extensions/
directory with a manifest.php file in it.
Internally that will create an instance of FW_Extension_Default
class.
Optionally, you can place a file class-fw-extension-{extension-name}.php
with the following contents, in the newly created directory and start create some advanced functionality:
<?php if (!defined('FW')) die('Forbidden');
class FW_Extension_{Extension_Name} extends FW_Extension
{
// ...
}