diff --git a/Cargo.lock b/Cargo.lock
index a99ead4..e982ac4 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -4866,6 +4866,7 @@ dependencies = [
  "tokio",
  "tokio-stream",
  "typeshare",
+ "urlencoding",
  "uuid 1.11.0",
  "warp",
 ]
diff --git a/visions/server/Cargo.toml b/visions/server/Cargo.toml
index f00e67c..4c2c69f 100644
--- a/visions/server/Cargo.toml
+++ b/visions/server/Cargo.toml
@@ -18,3 +18,4 @@ uuid = { version = "1.11.0", features = ["v4"] }
 futures = "0.3.31"
 tokio-stream = "0.1.16"
 typeshare = "1.0.4"
+urlencoding = "2.1.3"
diff --git a/visions/server/src/core.rs b/visions/server/src/core.rs
index 944bc82..a399112 100644
--- a/visions/server/src/core.rs
+++ b/visions/server/src/core.rs
@@ -6,6 +6,7 @@ use std::{
 };
 
 use tokio::sync::mpsc::{unbounded_channel, UnboundedReceiver, UnboundedSender};
+use urlencoding::decode;
 use uuid::Uuid;
 
 use crate::types::{AppError, Message, Tabletop, RGB};
@@ -68,10 +69,11 @@ impl Core {
     }
 
     pub fn get_file(&self, file_name: String) -> Vec<u8> {
-        let mut full_path = self.0.read().unwrap().image_base.clone();
-        full_path.push(&file_name);
+        let file_name = decode(&file_name).expect("UTF-8");
+
+        let mut full_path = self.0.read().unwrap().image_base.clone();
+        full_path.push(file_name.to_string());
 
-        println!("path: {:?}", full_path);
 
         let mut content: Vec<u8> = Vec::new();
         let mut file = std::fs::File::open(&full_path).unwrap();
diff --git a/visions/server/src/handlers.rs b/visions/server/src/handlers.rs
index 83a1386..90ab6cf 100644
--- a/visions/server/src/handlers.rs
+++ b/visions/server/src/handlers.rs
@@ -5,7 +5,7 @@ use serde::{Deserialize, Serialize};
 use tokio_stream::wrappers::UnboundedReceiverStream;
 use warp::{http::Response, reply::Reply, ws::Message};
 
-use crate::{core::Core};
+use crate::core::Core;
 
 /*
 pub async fn handle_auth(
@@ -82,7 +82,7 @@ pub async fn handle_connect_websocket(
     ws: warp::ws::Ws,
     client_id: String,
 ) -> impl Reply {
-    println!("handle_connect_websocket: {}", client_id);
+    // println!("handle_connect_websocket: {}", client_id);
     ws.on_upgrade(move |socket| {
         let core = core.clone();
         async move {
@@ -92,9 +92,10 @@ pub async fn handle_connect_websocket(
             tokio::task::spawn(async move {
                 let tabletop = core.0.read().unwrap().tabletop.clone();
                 let _ = ws_sender
-                    .send(Message::text(serde_json::to_string(
-                        &crate::types::Message::UpdateTabletop(tabletop),
-                    ).unwrap()))
+                    .send(Message::text(
+                        serde_json::to_string(&crate::types::Message::UpdateTabletop(tabletop))
+                            .unwrap(),
+                    ))
                     .await;
                 while let Some(msg) = receiver.recv().await {
                     println!("Relaying message: {:?}", msg);
@@ -107,3 +108,14 @@ pub async fn handle_connect_websocket(
         }
     })
 }
+
+pub async fn handle_set_background_image(core: Core, image_name: String) -> impl Reply {
+    let _ = core.set_background_image(image_name);
+
+    Response::builder()
+        .header("Access-Control-Allow-Origin", "*")
+        .header("Access-Control-Allow-Methods", "*")
+        .header("Content-Type", "application/json")
+        .body("")
+        .unwrap()
+}
diff --git a/visions/server/src/main.rs b/visions/server/src/main.rs
index b783d29..fc1e8b0 100644
--- a/visions/server/src/main.rs
+++ b/visions/server/src/main.rs
@@ -1,7 +1,6 @@
 use authdb::AuthError;
 use handlers::{
-    handle_available_images, handle_connect_websocket, handle_file,
-    handle_register_client, handle_unregister_client, RegisterRequest,
+    handle_available_images, handle_connect_websocket, handle_file, handle_register_client, handle_set_background_image, handle_unregister_client, RegisterRequest
 };
 use std::{
     convert::Infallible,
@@ -81,6 +80,7 @@ fn route_echo_authenticated(
 */
 
 async fn handle_rejection(err: warp::Rejection) -> Result<impl Reply, Infallible> {
+    println!("handle_rejection: {:?}", err);
     if let Some(Unauthorized) = err.find() {
         Ok(warp::reply::with_status(
             "".to_owned(),
@@ -97,6 +97,7 @@ async fn handle_rejection(err: warp::Rejection) -> Result<impl Reply, Infallible
 #[tokio::main]
 pub async fn main() {
     let core = core::Core::new();
+    let log = warp::log("visions::api");
 
     let route_image = warp::path!("api" / "v1" / "image" / String)
         .and(warp::get())
@@ -132,23 +133,33 @@ pub async fn main() {
             move |ws, client_id| handle_connect_websocket(core.clone(), ws, client_id)
         });
 
+    let route_set_bg_image_options = warp::path!("api" / "v1" / "tabletop" / "bg_image")
+        .and(warp::options())
+        .map({
+            move || {
+                Response::builder()
+                    .header("Access-Control-Allow-Origin", "*")
+                    .header("Access-Control-Allow-Methods", "PUT")
+                    .header("Access-Control-Allow-Headers", "content-type")
+                    .header("Content-Type", "application/json")
+                    .body("")
+                    .unwrap()
+            }
+        });
     let route_set_bg_image = warp::path!("api" / "v1" / "tabletop" / "bg_image")
         .and(warp::put())
         .and(warp::body::json())
-        .map({
+        .then({
             let core = core.clone();
-            move |body| {
-                println!("background_image: {}", body);
-                let _ = core.set_background_image(body);
-                warp::reply()
-            }
-        });
+            move |body| handle_set_background_image(core.clone(), body)
+        }).with(log);
 
     let filter = route_register_client
         .or(route_unregister_client)
         .or(route_websocket)
         .or(route_image)
         .or(route_available_images)
+        .or(route_set_bg_image_options)
         .or(route_set_bg_image)
         .recover(handle_rejection);
 
diff --git a/visions/ui/src/App.tsx b/visions/ui/src/App.tsx
index ff5d709..8efbba2 100644
--- a/visions/ui/src/App.tsx
+++ b/visions/ui/src/App.tsx
@@ -2,7 +2,7 @@ import React, { useEffect, useState } from 'react';
 import './App.css';
 import { Client } from './client';
 import { createBrowserRouter, RouterProvider } from 'react-router-dom';
-import { GmPlayingFieldComponent } from './components/GmPlayingField/GmPlayingField';
+import { GmView } from './views/GmView/GmView';
 import { WebsocketProvider } from './components/WebsocketProvider';
 import { PlayerView } from './views/PlayerView/PlayerView';
 
@@ -22,7 +22,7 @@ const App = ({ client }: AppProps) => {
         createBrowserRouter([
             {
                 path: "/gm",
-                element: <GmPlayingFieldComponent client={client} />
+                element: websocketUrl ? <WebsocketProvider websocketUrl={websocketUrl}> <GmView client={client} /> </WebsocketProvider> : <div> </div>
             },
             {
                 path: "/",
diff --git a/visions/ui/src/client.ts b/visions/ui/src/client.ts
index 52759a9..486eec2 100644
--- a/visions/ui/src/client.ts
+++ b/visions/ui/src/client.ts
@@ -38,4 +38,10 @@ export class Client {
         url.pathname = `/api/v1/image`;
         return fetch(url).then((response) => response.json());
     }
+
+    async setBackgroundImage(name: string) {
+        const url = new URL(this.base);
+        url.pathname = `/api/v1/tabletop/bg_image`;
+        return fetch(url, { method: 'PUT', headers: [['Content-Type', 'application/json']], body: JSON.stringify(name) });
+    }
 }
diff --git a/visions/ui/src/components/GmPlayingField/GmPlayingField.css b/visions/ui/src/components/GmPlayingField/GmPlayingField.css
deleted file mode 100644
index e69de29..0000000
diff --git a/visions/ui/src/components/GmPlayingField/GmPlayingField.tsx b/visions/ui/src/components/GmPlayingField/GmPlayingField.tsx
deleted file mode 100644
index 0ae8fcd..0000000
--- a/visions/ui/src/components/GmPlayingField/GmPlayingField.tsx
+++ /dev/null
@@ -1,29 +0,0 @@
-import React, { useEffect, useState } from 'react';
-import { Client, PlayingField } from '../../client';
-import { ThumbnailComponent } from '../Thumbnail/Thumbnail';
-import './GmPlayingField.css';
-
-interface GmPlayingFieldProps {
-    client: Client
-}
-
-export const GmPlayingFieldComponent = ({ client }: GmPlayingFieldProps) => {
-    const [field, setField] = useState<PlayingField | undefined>(undefined);
-    useEffect(() => {
-        client.playingField().then((field) => setField(field));
-    }, [client]);
-
-    const [images, setImages] = useState<string[]>([]);
-    useEffect(() => {
-        client.availableImages().then((images) => setImages(images));
-    }, [client]);
-
-    const backgroundUrl = field && client.imageUrl(field.backgroundImage);
-    return (<div className="playing-field">
-        <div>
-            {images.map((imageName) => <ThumbnailComponent client={client} imageId={imageName} />)}
-        </div>
-        <div className="playing-field__background"> {backgroundUrl && <img src={backgroundUrl.toString()} alt="playing field" />} </div>
-    </div>)
-}
-
diff --git a/visions/ui/src/components/Thumbnail/Thumbnail.tsx b/visions/ui/src/components/Thumbnail/Thumbnail.tsx
index dfa51b0..c63f4dd 100644
--- a/visions/ui/src/components/Thumbnail/Thumbnail.tsx
+++ b/visions/ui/src/components/Thumbnail/Thumbnail.tsx
@@ -3,9 +3,14 @@ import { Client } from '../../client';
 import './Thumbnail.css';
 
 interface ThumbnailProps {
-    client: Client
-    imageId: string
+    id: string;
+    url: URL;
+    onclick?: () => void;
 }
 
-export const ThumbnailComponent = ({ client, imageId }: ThumbnailProps) =>
-    (<div className="thumbnail"> <img src={client.imageUrl(imageId).toString()} /> </div>)
+export const ThumbnailComponent = ({ id, url, onclick }: ThumbnailProps) => {
+    const clickHandler = () => {
+        if (onclick) { onclick(); }
+    }
+    return (<div id={id} className="thumbnail" onClick={clickHandler}> <img src={url.toString()} /> </div>)
+}
diff --git a/visions/ui/src/views/GmView/GmView.css b/visions/ui/src/views/GmView/GmView.css
new file mode 100644
index 0000000..f3b6a10
--- /dev/null
+++ b/visions/ui/src/views/GmView/GmView.css
@@ -0,0 +1,4 @@
+.gm-view {
+    display: flex;
+    width: 100%;
+}
diff --git a/visions/ui/src/views/GmView/GmView.tsx b/visions/ui/src/views/GmView/GmView.tsx
new file mode 100644
index 0000000..9b8550f
--- /dev/null
+++ b/visions/ui/src/views/GmView/GmView.tsx
@@ -0,0 +1,28 @@
+import React, { useContext, useEffect, useState } from 'react';
+import { Client, PlayingField } from '../../client';
+import { TabletopElement } from '../../components/Tabletop/Tabletop';
+import { ThumbnailComponent } from '../../components/Thumbnail/Thumbnail';
+import { WebsocketContext } from '../../components/WebsocketProvider';
+import './GmView.css';
+
+interface GmViewProps {
+    client: Client
+}
+
+export const GmView = ({ client }: GmViewProps) => {
+    const { tabletop } = useContext(WebsocketContext);
+
+    const [images, setImages] = useState<string[]>([]);
+    useEffect(() => {
+        client.availableImages().then((images) => setImages(images));
+    }, [client]);
+
+    const backgroundUrl = tabletop.backgroundImage ? client.imageUrl(tabletop.backgroundImage) : undefined;
+    return (<div className="gm-view">
+        <div>
+            {images.map((imageName) => <ThumbnailComponent id={imageName} url={client.imageUrl(imageName)} onclick={() => { client.setBackgroundImage(imageName); }} />)}
+        </div>
+        <TabletopElement backgroundColor={tabletop.backgroundColor} backgroundUrl={backgroundUrl} />
+    </div>)
+}
+