Bloglovin icon

Hi everybody,
i need to insert a “Bloglovin” icon into my blog. I altready modified the script inserting:

‘bloglovin’ => array(
‘label’ => __( ‘Bloglovin’, ‘ssiw’ ),
‘pattern’ => ‘<li class=”social-bloglovin”>+‘,

But i have as result the icon with just a “+” inside and it’s not so nice. I would like to have a heart into that, i tried with Fontello, but everytime there’s another kind of picture inside the icon.

Can someone please explain me the right steps to do it?
Thanks a lot.

https://wordpress.org/plugins/simple-social-icons/