diff --git a/_static/devguide_overrides.css b/_static/devguide_overrides.css
index d47a1e602..5b6d67b09 100644
--- a/_static/devguide_overrides.css
+++ b/_static/devguide_overrides.css
@@ -55,6 +55,7 @@
 }
 
 .release-cycle-chart .release-cycle-blob-label.release-cycle-status-end-of-life,
+.release-cycle-chart .release-cycle-blob-label.release-cycle-status-prerelease,
 .release-cycle-chart .release-cycle-blob-label.release-cycle-status-feature {
     /* and FG when it's not in a blob */
     fill: var(--color-foreground-primary);