diff --git a/pkg/lib/patternfly/patternfly-5-overrides.scss b/pkg/lib/patternfly/patternfly-5-overrides.scss
index 8200d4464551..0ae9881e05db 100644
--- a/pkg/lib/patternfly/patternfly-5-overrides.scss
+++ b/pkg/lib/patternfly/patternfly-5-overrides.scss
@@ -407,3 +407,14 @@ select.pf-v5-c-form-control {
 html:not(.pf-v5-theme-dark) .pf-v5-c-menu-toggle:not(.pf-m-primary) {
     background-color: var(--pf-v5-global--BackgroundColor--100);
 }
+
+/* Give secondary buttons a white/grey background instead of their
+   default transparent one. This gives them better contrast in
+   toolbars.
+*/
+.pf-v5-c-button.pf-m-secondary {
+  background-color: var(--pf-v5-global--BackgroundColor--100);
+  .pf-v5-theme-dark & {
+     background-color: var(--pf-v5-global--BackgroundColor--400);
+  }
+}
diff --git a/test/reference b/test/reference
index b8704b853a9e..89b3ed85d000 160000
--- a/test/reference
+++ b/test/reference
@@ -1 +1 @@
-Subproject commit b8704b853a9ebd0f137c55ea95bc2e8b818a3148
+Subproject commit 89b3ed85d0006a22e767f6da77513a335b97558b