Info: https://www.jqwidgets.com/
jQWidgetsis a jQuery-based framework for creating PC-based web applications; jQWidgets is not a modified version of the jQuery UI toolkit. All widgets are designed from scratch and are based on a powerful common core. The core of the infrastructure provides such basic features as support for widget extensions and inheritance, widget settings, processing and routing of internal events, notification of changes in properties, detection and configuration of compatibility between devices and browsers.
Optimized for performance.
Small footprint, very responsive, carefully optimized to provide an excellent experience in a wide range of devices, operating systems and browsers.
Theme Designer
Theme Builder is a powerful online tool that helps you quickly create themes for the user interface of your jQWidgets-based application.