@thetravelgal: Hello there,
Go to => Appearance => Customize => Additional CSS and add the following CSS Code.
function new_image_size() {
remove_image_size( 'catchresponsive-featured-content', 350, 197, true ); // used in Featured Content
add_image_size( 'catchresponsive-featured-content', 200, 200, true ); // used in Featured Content
}
add_action('init', 'new_image_size');
Let me know if this works out!
Kind Regards,
Skandha