test/omega.scss in neat-1.8.0 vs test/omega.scss in neat-1.9.0

@@ -10,9 +10,13 @@
 
 .omega-complex-nth {
   @include omega("4n+1");
 }
 
+.omega-complex-nth-negative {
+  @include omega("3n-1");
+}
+
 section {
   @include row($direction: RTL);
 
   .omega-default-left {
     @include omega;