code: function modify(translate) {
        if (Glide.settings.focusAt >= 0) {
          var peek = Components.Peek.value;
  
          if (isObject(peek)) {
            return translate - peek.before;
          }
  
          return translate - peek;
        }
  
        return translate;
      }
docs: Modifies passed translate value with a `peek` setting.
  
  @param  {Number} translate
  @return {Number}