Pull up material disposal to MeshBase.

Assets/Cryville/Crtr/Components/SpriteBase.cs

@@ -25,10 +25,6 @@ namespace Cryville.Crtr.Components {
 		}
 #pragma warning restore IDE1006
 
-		protected override void OnDestroy() {
-			mesh.Destroy();
-		}
-
 		Vector2 _scale = Vector2.one;
 		public Vector2 Scale {
 			get { return _scale; }
@@ -92,6 +88,7 @@ namespace Cryville.Crtr.Components {
 
 		protected void InternalInit(string meshName = "quad") {
 			mesh.Init(transform);
+			mesh.Renderer.materials = materials = new Material[] { MeshWrapper.NewMaterial() };
 			mesh.Mesh = GenericResources.Meshes[meshName];
 			UpdateScale();
 			UpdateZIndex();