<?php
return [
    'social' => [
        'additional_services' => [
            [
                'whatsapp', // the handle
                'WhatsApp', // the title which will be shown in the dropdown
                'fa-whatsapp', // the icon name copied before
            ]
        ],
    ],
];

.si-whatsapp:hover,
.si-colored.si-whatsapp { background-color: #25d366 !important; }
.si-text-color.si-fivehundredpx i { color: #111; }