[bugs-central] Fix icons color in dark-mode

Change-Id: I6c752f9f3396500da0493b65f8e841e2ce30bf62
Reviewed-on: https://skia-review.googlesource.com/c/buildbot/+/373756
Reviewed-by: Joe Gregorio <jcgregorio@google.com>
Commit-Queue: Ravi Mistry <rmistry@google.com>
diff --git a/bugs-central/modules/bugs-central-scaffold-sk/bugs-central-scaffold-sk.scss b/bugs-central/modules/bugs-central-scaffold-sk/bugs-central-scaffold-sk.scss
index e33989c..f62a4e2 100644
--- a/bugs-central/modules/bugs-central-scaffold-sk/bugs-central-scaffold-sk.scss
+++ b/bugs-central/modules/bugs-central-scaffold-sk/bugs-central-scaffold-sk.scss
@@ -62,6 +62,10 @@
     padding: 32px 80px;
   }
 
+  svg.icon-sk-svg {
+    fill: var(--on-surface);
+  }
+
   login-sk {
     margin-left: auto;
     margin-right: 16px;