Use sample backplate material for Interaction scene panels (#161)

* Use sample backplate material for Interaction scene panels

* rm unnecessary change (known editor bug)

Author: KBonds

BasicSample/Assets/Interaction/Interaction.unity

@@ -3374,7 +3374,7 @@ MeshRenderer:
   m_RenderingLayerMask: 1
   m_RendererPriority: 0
   m_Materials:
-  - {fileID: 10303, guid: 0000000000000000f000000000000000, type: 0}
+  - {fileID: 2100000, guid: e6ad2b06d990d614688af3630dc4378e, type: 2}
   m_StaticBatchInfo:
     firstSubMesh: 0
     subMeshCount: 0