html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var chart = anychart.area();

​

    var series = chart.rangeArea([

        {x: 'Meat', high: 12, low: -10},

        {x: 'Fruit', high: 2, low: 11},

        {x: 'Nuts', high: 20, low: -10},

        {x: 'Milk', high: 2, low: 11},

        {x: 'Fish', high: 11, low: -9}

    ]);

​

    var state = series.normal();

​

    // Set low fill.

    state.lowFill(function () {

        return this.sourceColor.color + ' 0.1'

    });

​

    chart.title('Set state low fill parameter as a function');

    chart.container('container');

    chart.draw();

});