removed an opacity

src/mailgo.scss

@@ -49,7 +49,7 @@ $default-border-radius: 20px;
     right: 0;
     bottom: 0;
     left: 0;
-    background-color: rgba(217, 217, 217, 0.75);
+    background-color: rgb(217, 217, 217);
     opacity: 0.8;
   }