Special case blank slate for public

app/assets/stylesheets/card-columns.css

@@ -400,6 +400,10 @@
     box-shadow: none !important;
     color: color-mix(in srgb, var(--card-color) 70%, var(--color-canvas));
 
+    .cards--considering & {
+      background-color: var(--card-bg-color) !important;
+    }
+
     p {
       font-size: var(--text-small);
       overflow: hidden;

app/views/public/boards/show/_stream.html.erb

@@ -11,6 +11,10 @@
       <%= with_automatic_pagination "the-stream", @page do %>
         <%= render "public/boards/columns/list", cards: page.records %>
       <% end %>
+    <% else %>
+      <div class="card blank-slate blank-slate--card">
+        <p class="txt-align-center txt-normal">No cards here</p>
+      </div>
     <% end %>
   </div>
 </section>