anychart.onDocumentReady(function () {
var chart = anychart.gauges.circular([{value: 7.5}]);
chart.title('Set select marquee fill with opacity. \n Use mouse to draw marquee');
chart.container('container');
chart.startSelectRectangleMarquee(true);
chart.selectRectangleMarqueeFill('#FFEB3B', 0.3);