design to light button and panel working without indicators

public/site/blueprints/files/pdf.yml

@@ -1,17 +1,21 @@
 title: PDF
 
 focus: false
-fields:
-  comments:
-    type: hidden
-  cover:
-    label: Image de couverture
-    type: files
-    multiple: false
-    width: 1/3
-    layout: cards
-    uploads: pdf-cover
-  label:
-    label: Nom
-    type: text
-    width: 1/3
+
+tabs:
+  presentation:
+    label: Présentation
+    fields:
+      comments:
+        type: hidden
+      cover:
+        label: Image de couverture
+        type: files
+        multiple: false
+        width: 1/3
+        layout: cards
+        uploads: pdf-cover
+      label:
+        label: Nom
+        type: text
+        width: 1/3