Oh right, PB is another kind of item!

app/assets/stylesheets/partials/_item_header.sass

@@ -36,7 +36,7 @@
       align-items: center
       gap: 1em
       
-      .nc-or-np
+      .item-kind
         padding: .25em .5em
         border-radius: .25em
         cursor: help
@@ -50,7 +50,9 @@
         &[data-type=nc]
           background: #E9D8FD
           color: #44337A
-
+        &[data-type=pb]
+          background: #FEEBC8
+          color: #7B341E
         &[data-type=np]
           background: #E2E8F0
           color: #1A202C

app/views/items/_item_header.haml

@@ -8,10 +8,13 @@
     %h2.item-name= item.name
     %nav.item-links
       - if item.nc?
-        .nc-or-np{'data-type' => 'nc', title: 'Purchaseable with Neocash'}
+        .item-kind{'data-type' => 'nc', title: 'Purchaseable with Neocash'}
           NC
+      - elsif item.pb?
+        .item-kind{'data-type' => 'pb', title: 'Only obtainable via paintbrush'}
+          PB
       - else
-        .nc-or-np{'data-type' => 'np', title: 'Purchaseable with Neopoints'}
+        .item-kind{'data-type' => 'np', title: 'Purchaseable with Neopoints'}
           NP
 
       = link_to t('items.show.resources.jn_items'), jn_items_url_for(item)