diff --git a/.version b/.version
index 0611d73..8e54c22 100644
--- a/.version
+++ b/.version
@@ -1 +1 @@
-v6.3.3
+v6.3.4
diff --git a/package.json b/package.json
index 666e655..b4ddd5f 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ohzi-core",
-  "version": "6.3.3",
+  "version": "6.3.4",
   "description": "OHZI Core Library",
   "source": "src/index.js",
   "module": "build/index.module.js",
diff --git a/src/Graphics.js b/src/Graphics.js
index e17eeaa..b8892f4 100644
--- a/src/Graphics.js
+++ b/src/Graphics.js
@@ -25,18 +25,20 @@ class Graphics
     this.canvas_context = undefined;
     this.context_attributes = undefined;
 
-    this.context_attributes = context_attributes || {
+    this.context_attributes = {
       alpha: true,
       depth: true,
       desynchronized: false,
       stencil: false,
       antialias: false,
       premultipliedAlpha: true,
-      preserveDrawingBuffer: false,
+      preserveDrawingBuffer: true,
       powerPreference: 'high-performance',
       logarithmicDepthBuffer: false
     };
 
+    Object.assign(this.context_attributes, context_attributes);
+
     if (context_attributes.force_webgl2)
     {
       this.canvas_context = canvas.getContext('webgl2', this.context_attributes) ||
@@ -57,6 +59,7 @@ class Graphics
       canvas: canvas,
       context: this.canvas_context
     });
+
     this._renderer.autoClear = false;
 
     this._renderer.setPixelRatio(1);