Give username hover the same color as the other text.

mu-plugins/blocks/global-header-footer/postcss/header/admin-bar.pcss

@@ -165,6 +165,10 @@
 	opacity: 0.66;
 }
 
+#wpadminbar #wp-admin-bar-user-info a:hover .username {
+	color: var(--wporg-admin-bar--link-color--active);
+}
+
 @media screen and (max-width: 782px) {
 	#wpadminbar .quicklinks .menupop ul.ab-sub-secondary {
 		padding-bottom: 6px;