Fix comment background color mistake

Change-Id: I8567f7674c15ed49a55092bb2af63d1a98fd1e84

polygerrit-ui/app/styles/themes/app-theme.html

diff --git a/polygerrit-ui/app/styles/themes/app-theme.html b/polygerrit-ui/app/styles/themes/app-theme.html
index 1378f33..8ad2576 100644
--- a/polygerrit-ui/app/styles/themes/app-theme.html
+++ b/polygerrit-ui/app/styles/themes/app-theme.html
@@ -66,9 +66,9 @@
   --selection-background-color: rgba(161, 194, 250, 0.1);
   --tooltip-background-color: #333;
   /* comment background colors */
-  --comment-background-color: #fef7f0;
+  --comment-background-color: #e8eaed;
   --robot-comment-background-color: #e8f0fe;
-  --unresolved-comment-background-color: #e8eaed;
+  --unresolved-comment-background-color: #fef7f0;
   /* vote background colors */
   --vote-color-approved: #9fcc6b;
   --vote-color-disliked: #f7c4cb;