ById("map2dBtnradioMono").addEventListener('click', () =>  {changeMapstyle('monochromatic')});


    let mapZoom = 1;
    let mapCenter = [0,0];

    let geojsonfeatures = [];
    let map;

    settings();
    function initData() {
        data = {
            "type": "FeatureCollection",
            "features": []
        };

        if (filterBy === "none")
            numberEntries = totalEntries;
        else {
            numberEntries = numberActivityEntries[filterBy][0]
        }

        for (var en