code: def custom_template_path_valid?
        Vanity.playground.custom_templates_path &&
          File.exist?(Vanity.playground.custom_templates_path) &&
          !Dir[File.join(Vanity.playground.custom_templates_path, '*')].empty?
      end
docs: Check to make sure we set a custome path, it exists, and there are non-
   dotfiles in the directory.