How to change font options in BarChart QML value labels?

Question

QML

Good time. I've been trying for weeks to change the font settings for value labels in BarChart chart bars

Using QtCharts 2.2
Creating a chart from JS

function drawBar(){
        barChartView.removeAllSeries();
        barChartView.titleFont = Qt.font({bold:true,pixelSize:20});

        var barAbstractSeries = barChartView.createSeries(ChartView.SeriesTypeBar); // AbstractSeries object
        barAbstractSeries.clear();
        barAbstractSeries.append(qsTr("Resource Consumption"),getData());
        barAbstractSeries.labelsVisible = true;
        barAbstractSeries.labelsAngle = 270;
        barAbstractSeries.barWidth = 0.8;
        
        barChartView.axisX().categories = getCats();
        barChartView.axisX().labelsAngle = 270;
        barChartView.axisX().labelsFont = Qt.font({bold:true,pixelSize:15});
        barChartView.axisX().gridLineColor = "#b1b1b1";
        barChartView.axisY().gridLineColor = "#b1b1b1";
        ...
    }

where barChartView is

ChartView {
    id: barChartView
    width: parent.width
    height: 400
    antialiasing: false
    legend.visible: false
    backgroundColor: "#85FFFFFF"
    animationOptions: ChartView.SeriesAnimations
    animationDuration: 50
    titleFont: Qt.font({pointSize: 15})    
}