diff --git a/index.pug b/index.pug
index c9d6fc0..ff5a50c 100644
--- a/index.pug
+++ b/index.pug
@@ -7,9 +7,9 @@ html(lang="en-gb")
     body
         h1
             | pixsy
-            //img(alt="tilesy" src="includes/tilesy.png")
-        p
-            span.background convert images to Bitsy rooms
+            //img(alt="pixsy" src="includes/pixsy.png")
+        p convert images to Bitsy rooms
+        p looking for the #[a(href="./old/") old version]?
         .pages
             .page#start
                 button.normal.pagination.next#new create a new bitsy game
diff --git a/script.js b/script.js
index d292584..5c3a844 100644
--- a/script.js
+++ b/script.js
@@ -1,14 +1,10 @@
 import init, {
-    add_tiles,
+    add_room,
     load_image,
     load_game,
     load_default_game,
     output,
-    set_prefix,
-    set_invert,
-    set_flip,
-    set_mirror,
-    set_rotate
+    set_room_name,
 } from './pkg/pixsy.js';
 
 if (typeof WebAssembly !== "object") {
diff --git a/src/lib.rs b/src/lib.rs
index f060e5f..11225c8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -9,31 +9,25 @@ use wasm_bindgen::prelude::*;
 const SD: u32 = 8;
 
 struct State {
-    game:   Option<Game>,
-    image:  Option<DynamicImage>,
-    prefix: String,
-    invert: bool,
-    flip:   bool,
-    mirror: bool,
-    rotate: bool,
+    game:      Option<Game>,
+    image:     Option<DynamicImage>,
+    room_name: Option<String>,
+    palette:   Option<String>,
 }
 
 lazy_static! {
     static ref STATE: Mutex<State> = Mutex::new(
         State {
-            game: None,
-            image: None,
-            prefix: "".to_string(),
-            invert: false,
-            flip: false,
-            mirror: false,
-            rotate: false,
+            game:      None,
+            image:     None,
+            room_name: None,
+            palette:   None,
         }
     );
 }
 
-fn tile_name(prefix: &str, index: &u32) -> Option<String> {
-    if prefix.len() > 0 {
+fn tile_name(prefix: &Option<String>, index: &u32) -> Option<String> {
+    if let Some(prefix) = prefix {
         Some(format!("{} {}", prefix, index))
     } else {
         None
@@ -91,43 +85,17 @@ pub fn load_image(image_base64: String) -> String {
 }
 
 #[wasm_bindgen]
-pub fn set_prefix(prefix: String) {
+pub fn set_room_name(room_name: String) {
     let mut state = STATE.lock().unwrap();
 
-    state.prefix = prefix;
+    match room_name.is_empty() {
+        true  => { state.room_name = None },
+        false => { state.room_name = Some(room_name) },
+    }
 }
 
 #[wasm_bindgen]
-pub fn set_invert(invert: bool) {
-    let mut state = STATE.lock().unwrap();
-
-    state.invert = invert;
-}
-
-#[wasm_bindgen]
-pub fn set_flip(flip: bool) {
-    let mut state = STATE.lock().unwrap();
-
-    state.flip = flip;
-}
-
-#[wasm_bindgen]
-pub fn set_mirror(mirror: bool) {
-    let mut state = STATE.lock().unwrap();
-
-    state.mirror = mirror;
-}
-
-#[wasm_bindgen]
-pub fn set_rotate(rotate: bool) {
-    let mut state = STATE.lock().unwrap();
-
-    state.rotate = rotate;
-}
-
-/// prefix will be ignored if empty
-#[wasm_bindgen]
-pub fn add_tiles() -> String {
+pub fn add_room() -> String {
     let mut state = STATE.lock().expect("Couldn't lock application state");
 
     if state.game.is_none() {
@@ -163,7 +131,7 @@ pub fn add_tiles() -> String {
             let tile = Tile {
                 // "0" will get overwritten to a new, safe tile ID
                 id: "0".to_string(),
-                name: tile_name(&state.prefix, &tile_index),
+                name: tile_name(&state.room_name, &tile_index),
                 wall: None,
                 animation_frames: vec![Image { pixels }],
                 colour_id: None
@@ -174,63 +142,6 @@ pub fn add_tiles() -> String {
 
                 tile_index += 1;
             }
-
-            if state.invert {
-                let mut inverted = tile.clone();
-                inverted.invert();
-
-                if inverted.name.is_some() {
-                    inverted.name = Some(format!("{} inverted", inverted.name.unwrap()));
-                }
-
-                if !game.tiles.contains(&inverted) {
-                    game.add_tile(inverted);
-                }
-            }
-
-            if state.flip {
-                let mut flipped = tile.clone();
-                flipped.flip();
-
-                if flipped.name.is_some() {
-                    flipped.name = Some(format!("{} flipped", flipped.name.unwrap()));
-                }
-
-                if !game.tiles.contains(&flipped) {
-                    game.add_tile(flipped);
-                }
-            }
-
-            if state.mirror {
-                let mut mirrored = tile.clone();
-                mirrored.mirror();
-
-                if mirrored.name.is_some() {
-                    mirrored.name = Some(format!("{} mirrored", mirrored.name.unwrap()));
-                }
-
-                if !game.tiles.contains(&mirrored) {
-                    game.add_tile(mirrored);
-                }
-            }
-
-            if state.rotate {
-                for i in 1..4 {
-                    let mut rotated = tile.clone();
-
-                    for _ in 0..i {
-                        rotated.rotate();
-                    }
-
-                    if rotated.name.is_some() {
-                        rotated.name = Some(format!("{} {}°", rotated.name.unwrap(), i * 90));
-                    }
-
-                    if !game.tiles.contains(&rotated) {
-                        game.add_tile(rotated);
-                    }
-                }
-            }
         }
     }