shortcodes, custom icon size and sharing networks

At this time the only shortcode parameters that are supported in this plugin are type and style e.g [LoginRadius_Share type=”horizontal” style=”background-color:blue;”]

We do however have a custom script you can add to your page to produce the kind of customization you are looking for; this, however is not part of the plugin you have installed. You can find this script here https://www.loginradius.com/get-free-social-sharing