diff --git a/themes/puml-theme-toy.puml b/themes/puml-theme-toy.puml
index 23ddcf3ed..298426524 100644
--- a/themes/puml-theme-toy.puml
+++ b/themes/puml-theme-toy.puml
@@ -24,8 +24,9 @@ skinparam sequenceDivider {
 
 skinparam participant {
     BackgroundColor FF6F61
-    BorderColor FF6F61
+    BorderColor 454645
     FontColor White
+    BorderThickness 1.5
 }
 
 skinparam database {
@@ -42,8 +43,9 @@ skinparam entity {
 
 skinparam note {
     BackgroundColor LightGreen
-    BorderColor LightGreen
+    BorderColor 454645
     FontColor 454645
+    BorderThickness 1
 }
 
 skinparam actor {
@@ -68,6 +70,7 @@ skinparam collections {
     BackgroundColor FF6F61
     BorderColor 454645
     FontColor 454645
+    BorderThickness 1.5
 }
 
 skinparam queue {
@@ -75,4 +78,4 @@ skinparam queue {
     BorderColor 454645
     FontColor FFF
     BorderThickness 1.5
-}
\ No newline at end of file
+}