diff --git a/src/default.js b/src/default.js
index 7733faf..218c004 100644
--- a/src/default.js
+++ b/src/default.js
@@ -43,7 +43,7 @@ export default {
         {
           label: 'light',
           field: 'data/light',
-          color: '#ffff00',
+          color: '#999',
           fill:  '#0000'
         }
       ]