OK, here’s a prob…
Add a “piklist” folder to your theme and create a widget in “piklist/parts/widgets” sub-folder.
Be sure to install and activate Kirki – customizer plugin.
You’ll end up with something like this: http://prntscr.com/9vdvk3

I don’t blame Piklist but Firebug console says that there’s something wrong with INPUT field that belongs to Piklist plugin.

Any thoughts on this one?