Service Icon update

Simply trying to change the service icon to another fontawesome free icon, all i get is a plain orange circle, any pointers please?
e.g simply changing from fa-apple (per demo site) to fa-apple-alt results in a blank circle


The icon fa-apple-alt is available only from Fontawesome version 5.2, but we’re still using v4 in Moesia Theme, but you can update the font if you want by downloading the latest version of FontAwesome from here: and replace the font and css files from fonts folder with the new version.

Kind Regards,