diff --git a/plantuml/default-skin.ipu b/plantuml/default-skin.ipu
index c78dae6..bd7e72b 100644
--- a/plantuml/default-skin.ipu
+++ b/plantuml/default-skin.ipu
@@ -20,6 +20,9 @@
 		TitleFontStyle bold
 		TitleFontSize 18
 
+		' make lifelines yellow too
+		LifeLineBackgroundColor #FDFDCD
+
 		Message {
 			Align center
 		}