Remove empty terms

I really like your plugin, but it would be best if terms which have no items (with a count of 0) would not be displayed in the filter list. I know you can select the terms to add to the filter, but if every time you add a new post, you have to go and update the filter terms, it becomes cumbersome and error-prone.

In a similar vain, if you select one filter, and that causes some terms to no longer have items that match, it also shouldn’t be displayed. For example, if I have a category with therms “shirt” and “pants” and another with “red” and “blue”, if I select “pants” and there are no “red” pants, then “red” shouldn’t be displayed either.

Thanks