Update custom.scss

Author: KristinaYFischer

docs/_sass/custom/custom.scss

@@ -15,21 +15,21 @@
 }
 
 .label-required:not(g) {
-  background-color: #9e3429;
+  background-color: #df8f8f;
   color: #fff;
 }
 
 .label-conditional:not(g) {
-  background-color: #cf9a95;
+  background-color: #ffcfc9;
   color: #fff;
 }
 
 .label-recommended:not(g) {
-  background-color: #8bd977;
+  background-color: #ffcfc9;
   color: #fff;
 }
 
 .label-optional:not(g) {
-  background-color: #6ac6d9;
+  background-color: #c6dbe1;
   color: #fff;
 }