diff --git a/index.html b/index.html
index e315f09..2422bc8 100644
--- a/index.html
+++ b/index.html
@@ -100,6 +100,12 @@
         #config-form .btn-group.je-object__controls {
             margin: 0 0 0.75rem 0;
         }
+        #config-form .json-editor-btn-add {
+            background-color: darkgreen;
+        }
+        #config-form .json-editor-btn-delete {
+            background-color: darkred;
+        }
         footer>a>svg {
             fill: #c6cbd1;
         }