diff --git a/plantuml/lecture-colours.ipu b/plantuml/lecture-colours.ipu
index 680e773..2ad550e 100644
--- a/plantuml/lecture-colours.ipu
+++ b/plantuml/lecture-colours.ipu
@@ -33,7 +33,14 @@
 		FontColor #3f3f3f
 		AttributeFontColor #3f3f3f
 		StereotypeFontColor #3f3f3f
-		ArrowColor #3f3f3f
+	}
+
+	UseCase {
+		BackgroundColor #F2F2F2
+		BorderColor #3f3f3f
+		FontColor #3f3f3f
+		AttributeFontColor #3f3f3f
+		StereotypeFontColor #3f3f3f
 	}
 
 	Sequence {
@@ -52,7 +59,7 @@
 			BackgroundColor #F2F2F2
 			BorderColor #7f7f7f
 		}
-	
+
 		Actor {
 			BorderColor #3f3f3f
 			BackgroundColor #F2F2F2
@@ -76,6 +83,6 @@
 			BorderColor #7f7f7f
 			FontColor #3f3f3f
 		}
-	}	
+	}
 
 }