Code cleanup.

Assets/Cryville/Crtr/Components/SectionalGameObject.cs

@@ -113,12 +113,6 @@ namespace Cryville.Crtr.Components {
 			UpdateZIndex();
 		}
 
-		void AddMat(List<Material> list, string frame) {
-			var mat = mesh.NewMaterial;
-			mat.mainTexture = ChartPlayer.frames[frame].Texture;
-			list.Add(mat);
-		}
-
 		protected override void OnDestroy() {
 			base.OnDestroy();
 			Reset();

Assets/Cryville/Crtr/SkinSelectors.cs

@@ -155,7 +155,8 @@ namespace Cryville.Crtr {
 				get { return false; }
 			}
 			public override Transform Match(ContainerState h, Transform a, bool dyn = false) {
-				return null; // TODO
+				if (!dyn) throw new SelectorNotStaticException();
+				return null;
 			}
 		}
 		public class ElementType : SkinSelector {