app/assets/stylesheets/functions/_private.scss in neat-1.7.0 vs app/assets/stylesheets/functions/_private.scss in neat-1.7.1

@@ -1,17 +1,23 @@
+// Not function for Libsass compatibility
+// https://github.com/sass/libsass/issues/368
+@function is-not($value) {
+  @return if($value, false, true);
+}
+
 // Checks if a number is even
 @function is-even($int) {
-  @return $int % 2 == 0
+  @return $int % 2 == 0;
 }
 
 // Checks if an element belongs to a list or not
 @function belongs-to($tested-item, $list) {
-  @return not not-belongs-to($tested-item, $list);
+  @return is-not(not-belongs-to($tested-item, $list));
 }
 
 @function not-belongs-to($tested-item, $list) {
-  @return not index($list, $tested-item);
+  @return is-not(index($list, $tested-item));
 }
 
 // Contains display value
 @function contains-display-value($query) {
   @return belongs-to(table, $query)
@@ -47,10 +53,10 @@
   @return $parent-columns;
 }
 
 // Generates a striped background
 @function gradient-stops($grid-columns, $color: $visual-grid-color) {
-  $transparent: rgba(0,0,0,0);
+  $transparent: transparent;
 
   $column-width: flex-grid(1, $grid-columns);
   $gutter-width: flex-gutter($grid-columns);
   $column-offset: $column-width;