Node-red-dashboard CHART

Hi! I use node-red-dashboard chart and now I need to make biger font size for tooltips than is. In case using msg.ui_control I get incorrect data format in Title of tooltip. How to fix it?

My cfg message for chart:

msg.ui_control = {
options: {
legend: {

            // This more specific font property overrides the global property
            fullSize: true,
            position: 'top',
            display: true,
            labels: {
                fontSize: 20,
                fontColor: 'white'
    tooltips: {
        bodyFontSize: 18


return msg;


Thanks for help!

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