File: templates/custom/login.banner.twig.example

<script src="/js/ansisys.js"></script>
<div class="row justify-content-center">
     <div id="login-banner" style="text-align: center" class="ansi-art-container col-md-6 col-lg-6">
    </div>
</div>
<script>
    let messageText=`

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    `;
let rendered = renderAnsiTerminal(messageText);
    $("#login-banner").html('<pre>'+rendered+'</pre>');
</script>