Maps - Map marker icon

ExpressionEngine Code

{exp:reinos_maps:html_header}

{exp:reinos_maps:map 
    width="100%"
    zoom="3"
}
    {maps:add_marker
        address="rotterdam"
        icon:url="https://addons.reinos.nl/assets/uploads/images/letter_a.png"
    }

    {maps:add_marker
        address="amsterdam"
        icon:url="https://addons.reinos.nl/assets/uploads/images/letter_b.png"
    }

    {maps:add_marker
        address="New york"
        icon:url="https://addons.reinos.nl/assets/uploads/images/letter_c.png"
    }
{/exp:reinos_maps:map}

{exp:reinos_maps:html_footer}