jQuery Button
Set the widget's theme property to 'energyblue' .
by jqwidgets
HTML
<script src="https://jqwidgets.com/public/jqwidgets/jqx-all.js"></script>
<link rel="stylesheet" href="https://jqwidgets.com/public/jqwidgets/styles/jqx.base.css">
<link rel="stylesheet" href="https://jqwidgets.com/public/jqwidgets/styles/jqx.energyblue.css">
<input type="button" value="Click me" id='jqxButton' />
JavaScript
$('#jqxButton').jqxButton({
theme: 'energyblue'
});