Fix Prefab Highlight for initial event name toggle & override #71

Author: PaulDemeulenaere

com.unity.visualeffectgraph/CHANGELOG.md

@@ -8,6 +8,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/spec/v2.0.0.
 
 ### Fixed
 - Fix for node window staying when clicking elsewhere
+- Prefab highlight missing for initial event name toggle [Case 1263012](https://issuetracker.unity3d.com/product/unity/issues/guid/1263012/)
 
 ## [8.2.0] - 2020-07-08
 

com.unity.visualeffectgraph/Editor/Inspector/VisualEffectEditor.cs

@@ -174,7 +174,9 @@ bool DisplayProperty(ref VFXParameterInfo parameter, GUIContent nameContent, Ser
             toggleRect.yMin += 2.0f;
             toggleRect.width = 18;
             EditorGUI.BeginChangeCheck();
+            EditorGUI.BeginProperty(toggleRect, GUIContent.none, overridenProperty);
             bool newOverriden = EditorGUI.Toggle(toggleRect, overrideMixed ? false : overridenProperty.boolValue, overrideMixed ? Styles.toggleMixedStyle : Styles.toggleStyle);
+            EditorGUI.EndProperty();
             overriddenChanged = EditorGUI.EndChangeCheck();
             if (overriddenChanged)
             {
@@ -655,7 +657,9 @@ void InitialEventField(VisualEffectResource resource)
                 fakeInitialEventNameField.stringValue = resource != null ? resource.initialEventName : "OnPlay";
 
                 EditorGUI.BeginChangeCheck();
+                EditorGUI.BeginProperty(toggleRect, GUIContent.none, m_InitialEventNameOverriden);
                 bool resultOverriden = EditorGUI.Toggle(toggleRect, m_InitialEventNameOverriden.boolValue, Styles.toggleStyle);
+                EditorGUI.EndProperty();
                 if (EditorGUI.EndChangeCheck())
                 {
                     m_InitialEventNameOverriden.boolValue = resultOverriden;