Fixed gradient-stops function

gistfile1.scss

// Generates a striped background
@function gradient-stops($grid-columns, $color: $visual-grid-color) {
  $transparent: rgba(0,0,0,0);

  $column-width: flex-grid(1, $grid-columns);
  $gutter-width: flex-gutter($grid-columns);
  $column-offset: $column-width;

  $values: ($transparent 0, $color 0);

  @for $i from 1 to $grid-columns*2 {
    @if is-even($i) {
      $values: append($values, $transparent $column-offset, comma);
      $values: append($values, $color $column-offset, comma);
      $column-offset: $column-offset + $column-width;
    }

    @else {
      $values: append($values, $color $column-offset, comma);
      $values: append($values, $transparent $column-offset, comma);
      $column-offset: $column-offset + $gutter-width;
    }
  }

  @return $values;
}