diff --git a/docs/stylesheets/extra.css b/docs/stylesheets/extra.css
index 4cc19faf63c..eb70324cb84 100644
--- a/docs/stylesheets/extra.css
+++ b/docs/stylesheets/extra.css
@@ -11,4 +11,8 @@ article ul ul {
 
 article ul ul ul {
         list-style-type:  square !important;
-}
\ No newline at end of file
+}
+
+.mermaid { 
+   --md-mermaid-node-fg-color:  #18A0A0;
+}