diff --git a/visions/server/src/core.rs b/visions/server/src/core.rs
index b86ecaa..bf6780a 100644
--- a/visions/server/src/core.rs
+++ b/visions/server/src/core.rs
@@ -8,7 +8,7 @@ use std::{
 use tokio::sync::mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender};
 use uuid::Uuid;
 
-use crate::types::Message;
+use crate::types::{AppError, Message, PlayArea};
 
 #[derive(Debug)]
 struct WebsocketClient {
@@ -19,6 +19,8 @@ struct WebsocketClient {
 pub struct AppState {
     pub image_base: PathBuf,
 
+    pub playfield_background: String,
+
     pub clients: HashMap<String, WebsocketClient>,
 }
 
@@ -29,6 +31,7 @@ impl Core {
     pub fn new() -> Self {
         Self(Arc::new(RwLock::new(AppState {
             image_base: PathBuf::from("/home/savanni/Pictures"),
+            playfield_background: "moon.jpg".to_owned(),
             clients: HashMap::new(),
         })))
     }
@@ -95,6 +98,15 @@ impl Core {
             .collect()
     }
 
+    pub fn set_playfield_background(&self, path: String) -> Result<(), AppError> {
+        {
+            let mut state = self.0.write().unwrap();
+            state.playfield_background = path.clone();
+        }
+        self.publish(Message::PlayArea(PlayArea{ background_image: path }));
+        Ok(())
+    }
+
     pub fn publish(&self, message: Message) {
         let state = self.0.read().unwrap();
 
diff --git a/visions/server/src/handlers.rs b/visions/server/src/handlers.rs
index 8003fa3..c8861ca 100644
--- a/visions/server/src/handlers.rs
+++ b/visions/server/src/handlers.rs
@@ -98,13 +98,14 @@ pub async fn handle_connect_websocket(
     ws.on_upgrade(move |socket| {
         let core = core.clone();
         async move {
-            let (mut ws_sender, mut ws_recv) = socket.split();
+            let (mut ws_sender, _) = socket.split();
             let mut receiver = core.connect_client(client_id);
 
             tokio::task::spawn(async move {
+                let background_image = core.0.read().unwrap().playfield_background.clone();
                 let _ = ws_sender
                     .send(Message::text(
-                        serde_json::to_string(&crate::types::Message::Count(0)).unwrap(),
+                        serde_json::to_string(&crate::types::Message::PlayArea(PlayArea{ background_image })).unwrap(),
                     ))
                     .await;
                 while let Some(msg) = receiver.recv().await {
diff --git a/visions/server/src/main.rs b/visions/server/src/main.rs
index 2a5b079..ff680af 100644
--- a/visions/server/src/main.rs
+++ b/visions/server/src/main.rs
@@ -134,14 +134,13 @@ pub async fn main() {
             move |ws, client_id| handle_connect_websocket(core.clone(), ws, client_id)
         });
 
-    let route_publish = warp::path!("api" / "v1" / "message")
-        .and(warp::post())
+    let route_set_playfield_bg = warp::path!("api" / "v1" / "playfield" / "bg")
+        .and(warp::put())
         .and(warp::body::json())
         .map({
             let core = core.clone();
             move |body| {
-                println!("route_publish: {:?}", body);
-                core.publish(body);
+                core.set_playfield_background(body);
                 warp::reply()
             }
         });
@@ -152,7 +151,7 @@ pub async fn main() {
         .or(route_playing_field)
         .or(route_image)
         .or(route_available_images)
-        .or(route_publish)
+        .or(route_set_playfield_bg)
         .recover(handle_rejection);
 
     let server = warp::serve(filter);
diff --git a/visions/server/src/types.rs b/visions/server/src/types.rs
index 5990a8f..4a998fe 100644
--- a/visions/server/src/types.rs
+++ b/visions/server/src/types.rs
@@ -12,9 +12,9 @@ pub enum AppError {
 }
 
 #[derive(Clone, Debug, Deserialize, Serialize)]
+#[serde(tag = "type")]
 pub enum Message {
-    Count(u32),
-    // PlayArea(PlayArea),
+    PlayArea(PlayArea),
 }
 
 
diff --git a/visions/ui/src/App.tsx b/visions/ui/src/App.tsx
index b2a38b5..1497180 100644
--- a/visions/ui/src/App.tsx
+++ b/visions/ui/src/App.tsx
@@ -26,7 +26,7 @@ const App = ({ client }: AppProps) => {
             },
             {
                 path: "/",
-                element: websocketUrl ? <WebsocketPlayingFieldComponent websocketUrl={websocketUrl} /> : <div> </div>
+                element: websocketUrl ? <WebsocketPlayingFieldComponent client={client} websocketUrl={websocketUrl} /> : <div> </div>
             }
         ]);
     return (
diff --git a/visions/ui/src/components/PlayingField/PlayingField.tsx b/visions/ui/src/components/PlayingField/PlayingField.tsx
index 8ebf299..ec44de9 100644
--- a/visions/ui/src/components/PlayingField/PlayingField.tsx
+++ b/visions/ui/src/components/PlayingField/PlayingField.tsx
@@ -26,15 +26,26 @@ export const PlayingFieldComponent = ({ client }: PlayingFieldProps) => {
 */
 
 interface WebsocketPlayingFieldProps {
+    client: Client;
     websocketUrl: string;
 }
 
-export const WebsocketPlayingFieldComponent = ({ websocketUrl }: WebsocketPlayingFieldProps) => {
+type Message = |
+{
+    type: "PlayArea";
+    background_image: string;
+}
+
+export const WebsocketPlayingFieldComponent = ({ client, websocketUrl }: WebsocketPlayingFieldProps) => {
     const { lastMessage, readyState } = useWebSocket(websocketUrl);
+    const [backgroundUrl, setBackgroundUrl] = useState<URL | undefined>(undefined);
 
     useEffect(() => {
         if (lastMessage !== null) {
-            console.log("last message: ", lastMessage);
+            const message: Message = JSON.parse(lastMessage.data);
+            console.log("playing area: ", message);
+            console.log("playing area: ", message.background_image);
+            setBackgroundUrl(client.imageUrl(message.background_image));
         }
     }, [lastMessage]);
 
@@ -46,11 +57,11 @@ export const WebsocketPlayingFieldComponent = ({ websocketUrl }: WebsocketPlayin
         [ReadyState.UNINSTANTIATED]: 'Uninstantiated',
     }[readyState];
 
-    return <PlayingFieldComponent backgroundUrl={undefined} connectionStatus={connectionStatus} />;
+    return <PlayingFieldComponent backgroundUrl={backgroundUrl} connectionStatus={connectionStatus} />;
 }
 
 interface PlayingFieldProps {
-    backgroundUrl: string | undefined;
+    backgroundUrl: URL | undefined;
     connectionStatus: string;
 }