diff --git a/packages/core/src/components/persea/index.scss b/packages/core/src/components/persea/index.scss
index 5113227..13aaaf1 100644
--- a/packages/core/src/components/persea/index.scss
+++ b/packages/core/src/components/persea/index.scss
@@ -270,3 +270,9 @@ canvas,
 img {
   image-rendering: pixelated;
 }
+
+button.active {
+  box-shadow: 0px 0px 5px white;
+  background-color: #777;
+  border: 2px solid yellow;
+}