diff --git a/src/tiles.rs b/src/tiles.rs
index 1949614..7a58567 100644
--- a/src/tiles.rs
+++ b/src/tiles.rs
@@ -18,35 +18,11 @@ impl<Layer> Debug for TileId<Layer> {
     }
 }
 
-#[derive(Debug)]
-pub enum Bg {}
-#[derive(Debug)]
-pub enum Mid {}
-#[derive(Debug)]
-pub enum Fg {}
-
-pub trait TileLayer {
-    /// Definitions specific to this layer
-    type SpecificDef;
-}
-
-impl TileLayer for Bg {
-    type SpecificDef = ();
-}
-
-impl TileLayer for Mid {
-    type SpecificDef = MidDef;
-}
-
-impl TileLayer for Fg {
-    type SpecificDef = ();
-}
 
 #[derive(Serialize, Deserialize, Inspect)]
 pub struct TileDef
 where
 {
-    /// Whether the tile emits light, and the light source offset
     pub layer: (),
     //ADD pub blend_graphic: String,
 }
diff --git a/tiles.rs b/tiles.rs
index 794689d..7a58567 100644
--- a/tiles.rs
+++ b/tiles.rs
@@ -18,29 +18,6 @@ impl<Layer> Debug for TileId<Layer> {
     }
 }
 
-#[derive(Debug)]
-pub enum Bg {}
-#[derive(Debug)]
-pub enum Mid {}
-#[derive(Debug)]
-pub enum Fg {}
-
-pub trait TileLayer {
-    /// Definitions specific to this layer
-    type SpecificDef;
-}
-
-impl TileLayer for Bg {
-    type SpecificDef = ();
-}
-
-impl TileLayer for Mid {
-    type SpecificDef = MidDef;
-}
-
-impl TileLayer for Fg {
-    type SpecificDef = ();
-}
 
 #[derive(Serialize, Deserialize, Inspect)]
 pub struct TileDef