diff --git a/components/GalleryImageViewer.vue b/components/GalleryImageViewer.vue
index 2eebc66..26fca34 100644
--- a/components/GalleryImageViewer.vue
+++ b/components/GalleryImageViewer.vue
@@ -63,8 +63,8 @@ export default {
   data () {
     return {
       loadingImageUrl: 'https://via.placeholder.com/120x120',
-      backgroundImageUrl: null,
-      displayImageUrl: null,
+      backgroundImageUrl: null, // blurred vwersion of image that makes up the background
+      displayImageUrl: null, // image being viewed
       showLoading: true,
       loadingTimeout: null
     }