app/bundles/ReportBundle/Resources/views/Graph/Line.html.twig

<div class="col-sm-12">
    <div class="panel">
        <div class="panel-body box-layout">
            <div class="col-xs-8 va-m">
                <h5 class="text-white dark-md fw-sb mb-xs">{{ graph.name|trans }}</h5>
            </div>
            <div class="col-xs-4 va-t text-right">
                <h3 class="text-white dark-sm"><span class="fa {{ graph.iconClass|default('') }}"></span></h3>
            </div>
        </div>
        {{ include('@MauticCore/Helper/chart.html.twig', {'chartData': graph, 'chartType': 'line', 'chartHeight': 300}) }}
    </div>
</div>