diff --git a/src/pages/overall/overall-course/overall-course.scss b/src/pages/overall/overall-course/overall-course.scss
index 1982bec..9dbed8e 100644
--- a/src/pages/overall/overall-course/overall-course.scss
+++ b/src/pages/overall/overall-course/overall-course.scss
@@ -12,7 +12,7 @@
     white-space: nowrap;
 
     // Expansion color
-    background: #f9f9f9;
+    background: #f4f6f9;
 
     // Main card content
     .course-card-content.main
diff --git a/src/pages/overall/overall-course/unread-entry/unread-entry.ts b/src/pages/overall/overall-course/unread-entry/unread-entry.ts
index bda4807..53821bf 100644
--- a/src/pages/overall/overall-course/unread-entry/unread-entry.ts
+++ b/src/pages/overall/overall-course/unread-entry/unread-entry.ts
@@ -24,6 +24,7 @@ export default class UnreadEntry extends Vue
      */
     markAsRead()
     {
+        // Call custom event
         this.$emit('mark-as-read', this.assignment)
     }
 }