Products color switch issue

I’m doing well with the theme.

The color switch on single product page is doing excellent.

However, I couldn’t find a way to make the color switch option appear on the widget.

I would like to make it like
http://demo.xtemos.com/basel/home-fashion/
or
http://demo.xtemos.com/basel/home-bicycle/

Once I click the color option, the image will change on the widget.

Thanks