diff --git a/src/demo/NMRiumWrapperDemo.tsx b/src/demo/NMRiumWrapperDemo.tsx
index 9140c6b..c484609 100644
--- a/src/demo/NMRiumWrapperDemo.tsx
+++ b/src/demo/NMRiumWrapperDemo.tsx
@@ -33,6 +33,7 @@ export default function NMRiumWrapperDemo() {
               type: 'nmrium',
             });
           }}
+          intent="primary"
         >
           Test load from json
         </Button>