XD 27 updates

Author: peterflynn

changes.md

@@ -1,5 +1,14 @@
 # Change Log
 
+XD Release 27.0.12 (February 2020)
+-------------------------------------
+XD 27 is a minor update for plugin developers, with one new added API:
+
+* Get and set [`SceneNode.blendMode`](./reference/scenegraph.md#SceneNode-blendMode)
+
+[Read more about XD 27 new features for end users on the Adobe blog](https://theblog.adobe.com/announcing-mac-os-voice-control-adobe-xd).
+
+
 XD Release 26.0.12 (January 2020)
 -------------------------------------
 

reference/scenegraph.md

@@ -136,6 +136,7 @@ Base class of all scenegraph nodes. Nodes will always be an instance of some _su
     * *[.selected](#SceneNode-selected) : <code>boolean</code>*
     * *[.visible](#SceneNode-visible) : <code>boolean</code>*
     * *[.opacity](#SceneNode-opacity) : <code>number</code>*
+    * *[.blendMode](#SceneNode-blendMode) : <code>string</code>*
     * *[.transform](#SceneNode-transform) : <code>!Matrix</code>*
     * *[.translation](#SceneNode-translation) : <code>!{x:number, y:number}</code>*
     * *[.rotation](#SceneNode-rotation) : <code>number</code>*
@@ -258,6 +259,21 @@ Node's opacity setting. The overall visual opacity seen in the document is deter
 
 * * *
 
+<a name="SceneNode-blendMode"></a>
+
+### *sceneNode.blendMode : <code>string</code>*
+**Default**: `BLEND_MODE_PASSTHROUGH`
+**Since**: XD 27
+
+Blend mode determines how a node is composited onto the content below it.
+
+_Note:_ for leaf nodes (GraphicNode), the XD UI may show leaf nodes as blend mode "Normal" even when the underlying value is `BLEND_MODE_PASSTHROUGH`. This is because "Pass Through" and "Normal" are essentially equivalent for leaf nodes -- they only differ
+in appearance when a node has children.
+
+**Kind**: instance property of [<code>SceneNode</code>](#SceneNode)
+
+* * *
+
 <a name="SceneNode-transform"></a>
 
 ### *sceneNode.transform : <code>\![Matrix](Matrix.md)</code>*