diff --git a/Source/utils/CGMappings.swift b/Source/utils/CGMappings.swift
index 591db14b..7eced04e 100644
--- a/Source/utils/CGMappings.swift
+++ b/Source/utils/CGMappings.swift
@@ -139,7 +139,7 @@ public extension Node {
         let renderer = RenderUtils.createNodeRenderer(self, view: nil)
         let rect = size.rect()
 
-        MGraphicsBeginImageContextWithOptions(size.toCG(), false, 1)
+        MGraphicsBeginImageContextWithOptions(size.toCG(), false, 0.0)
         let ctx = MGraphicsGetCurrentContext()!
         ctx.clear(rect.toCG())
 
@@ -149,6 +149,7 @@ public extension Node {
         
         defer {
             MGraphicsEndImageContext()
+            renderer.dispose()
         }
 
         guard let img = MGraphicsGetImageFromCurrentImageContext() else {
diff --git a/Source/views/MacawView.swift b/Source/views/MacawView.swift
index cb1ae1e1..bea76341 100644
--- a/Source/views/MacawView.swift
+++ b/Source/views/MacawView.swift
@@ -671,6 +671,11 @@ internal class DrawingView: MView {
             recognizersMap.removeValue(forKey: recognizer)
         }
     }
+    
+    // MARK: - Cleanup
+    deinit {
+        renderer?.dispose()
+    }
 }
 
 class LayoutHelper {