Issue #2941647 by markconroy, JayKandari, cehfisher, smaz, andrewmacpherson:...

Issue #2941647 by markconroy, JayKandari, cehfisher, smaz, andrewmacpherson: Link hover styles unintentionally applied to administration toolbar

core/profiles/demo_umami/themes/umami/css/components/navigation/toolbar/toolbar.css

+/**
+ * @file
+ * Visual styles for toolbar.
+ *
+ * Our global styling from base.css is causing the background color of hovered
+ * <a> tags to apply to the toolbar as well. This file is used to reset that.
+ */
+
+.toolbar-item:hover,
+.toolbar-item:focus,
+.toolbar-tray a:hover,
+.toolbar-tray a:focus {
+  background-color: inherit;
+}

core/profiles/demo_umami/themes/umami/umami.libraries.yml

@@ -25,6 +25,7 @@ global:
       css/components/navigation/menu-account/menu-account.css: {}
       css/components/navigation/skip-link/skip-link.css: {}
       css/components/navigation/tabs/tabs.css: {}
+      css/components/navigation/toolbar/toolbar.css: {}
       css/components/navigation/breadcrumbs/breadcrumbs.css: {}
       css/components/regions/bottom/bottom.css: {}
       css/components/regions/footer/footer.css: {}