returned font color

src/client/styles/scss/theme/hufflepuff.scss

@@ -106,12 +106,6 @@ html[light] {
     }
   }
 
-  .card.border-primary {
-    .card-header.bg-primary.text-light {
-      color: $subthemecolor !important;
-    }
-  }
-
   .growi:not(.login-page) {
     // add background-image
     #page-wrapper,