diff --git a/theme-github-dark.css b/theme-github-dark.css
index bdcdfc8..3dae9c2 100644
--- a/theme-github-dark.css
+++ b/theme-github-dark.css
@@ -316,3 +316,8 @@ textarea,
   background: transparent;
   border-radius: 6px;
 }
+
+/* color of active tabular item, e.g. in PR view (conversations, commits, files changed) */
+.ui.tabular.menu .active.item, .ui.tabular.menu .active.item:hover {
+  background: var(--color-navbar);
+}