Show 'Choose...' in a Symmetry theme with Sections

pick-a-symmetry-sections.js

// copy this to the very bottom of Assets/theme.js.liquid, below everything else in there

$(document).on('optionate', 'select[name="id"]', function(){
  var $this = $(this);
  setTimeout(function(){
    if(!$this.closest('.product-detail').find('.option-selectors select option[value=""]').length) {
      $this.closest('.product-detail').find('.option-selectors select').prepend('<option value="">Choose...</option>').val('').trigger('change');
      $this.closest('.product-detail').find('.price-area').html('&nbsp;');
      $this.closest('.product-detail').find('.gallery .thumbnails a:first').trigger('click');
    }
  }, 10);
});