TimeAxisColumn

//<code-header>
fiddle.title = 'Time axis column';
//</code-header>
const gantt = new Gantt({
    appendTo : targetElement,
    height   : 350,

    subGridConfigs : {
        locked : { flex : 1 },
        normal : { flex : 2 }
    },

    project : {
        startDate : new Date(2020, 0, 1),
        events    : [
            { id : 1, name : 'Half done task', startDate : '2020-01-02', endDate : '2020-01-05' },
            { id : 2, name : 'Finalized task', startDate : '2020-01-09', endDate : '2020-01-10' },
            { id : 3, name : 'Way more work than needed', startDate : '2020-01-09', endDate : '2020-01-10' }
        ]
    },

    columns : [
        { type : 'name', flex : 1 },
        {
            type : 'timeAxis',
            afterRenderCell({ cellElement, record }) {
                if (record.id === 1) {
                    cellElement.style.background = 'rgba(255,200,0,0.15)';
                }
                else {
                    cellElement.style.background = 'unset';
                }
            }
        }
    ]
});