diff --git a/sample/ktree/src/commonMain/kotlin/main.kt b/sample/ktree/src/commonMain/kotlin/main.kt
index 1c25cfd..15148c6 100644
--- a/sample/ktree/src/commonMain/kotlin/main.kt
+++ b/sample/ktree/src/commonMain/kotlin/main.kt
@@ -6,4 +6,5 @@ import com.soywiz.korio.file.std.*
 
 suspend fun main() = Korge(bgcolor = Colors["#172335"]) {
 	addChild(resourcesVfs["scene.ktree"].readKTree(views()))
+	this["small"].alpha(0.1)
 }