"Gray Out" variations that are out of stock?

I stumbled across this plugin to try and achieve a bit more custom look for variation selection.

One thing that is a bit irritating is the default way all of the variations are always visible, even if they’re out of stock.

Then I found this thread: https://github.com/woothemes/woocommerce/issues/5661

It looks as though they were able to come up with a way to “gray out” or deactivate the variations that have zero stock.

Is it possible to add this functionality to this plugin?

https://www.ads-software.com/plugins/woocommerce-radio-buttons/