eiru_reporting_dashboard/static/src/xml/widgets/chart_purchase_expense.xml

<?xml version="1.0" encoding="UTF-8"?>

<template xml:space="preserve">
    <t t-name="ChartPurchaseExpense">
        <t t-call="WidgetReportingBaseTemplate">
            <h2  class="widget-title">
                <i class="fa fa-bar-chart" aria-hidden="true"></i>
                <span>Compras y Gastos</span>
            </h2>
            <div class="widget-content">
                <br/>
                <canvas></canvas>
            </div>
            <div class="widget-content widget-loading">
                <i class='fa fa-cog fa-spin fa-3x fa-fw'></i>
            </div>
        </t>
    </t>
</template>