Sticky note title had wrong font size while editing (#301)

* Sticky note title had wrong font size while editing

* Updated changelog

Author: julienamsellem

com.unity.visualeffectgraph/CHANGELOG.md

@@ -12,6 +12,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 - Allows for attribute-less systems. [Case 1341789](https://issuetracker.unity3d.com/product/unity/issues/guid/1341789/)
 - Editing the values in the graph did not impact the system in real-time after saving [Case 1371089](https://issuetracker.unity3d.com/product/unity/issues/guid/1371089/)
 - Fixed null reference exception when opening another VFX and a debug mode is enabled [Case 1347420](https://issuetracker.unity3d.com/product/unity/issues/guid/1347420/)
+- Sticky note title keeps the selected font size when being edited
 
 ## [13.1.1] - 2021-10-04
 ### Added

com.unity.visualeffectgraph/Editor/GraphView/Elements/VFXStickyNote.cs

@@ -88,6 +88,7 @@ public VFXStickyNoteController controller
         VFXStickyNoteController m_Controller;
         public VFXStickyNote() : base(Vector2.zero)
         {
+            styleSheets.Add(Resources.Load<StyleSheet>("StickyNote"));
             this.RegisterCallback<StickyNoteChangeEvent>(OnUIChange);
         }