html, body, #container {

    width: 100%;

    height: 100%;

    margin: 0;

    padding: 0;

}

anychart.onDocumentReady(function () {

    var stage = anychart.graphics.create("container");

    var palette = anychart.palettes.distinctColors();

    palette.items(["#F44336", "#FFEB3B", "#795548", "#4CAF50"]);

    var getColor = palette.itemAt(1); // get the color by index

    palette.itemAt(3, getColor);

    for (var i = 1; i < 10; i++) {

        var rect = stage.rect((i - 1) * stage.width() / 9, 0, stage.width() / 9 - .5, stage.height());

        rect.fill(palette.itemAt(i));

        rect.stroke("1px #000");

    }

});