diff --git a/html/status.html b/html/status.html
index 35ff0fb..4fba784 100644
--- a/html/status.html
+++ b/html/status.html
@@ -72,6 +72,11 @@
         align-items: center;
         flex: 0 0 auto;
       }
+      li.disabled {
+        opacity: 0.5;
+        cursor: not-allowed;
+        pointer-events: none;
+      }
       button {
         width: 32px;
         height: 32px;
@@ -138,6 +143,9 @@
       };
 
       const registerReceiveEvents = () => {
+        ipcRenderer.on("button-disabled", (e, button) => {
+          document.getElementById(button.id).parentNode.classList.toggle("disabled", button.disabled);
+        });
         ipcRenderer.on("text-content", (e, text) => {
           document.getElementById(text.id).textContent = text.content;
         });
diff --git a/html/widget.html b/html/widget.html
index e07a5c3..ddc4307 100644
--- a/html/widget.html
+++ b/html/widget.html
@@ -78,6 +78,16 @@
           </svg>
         </button>
       </li>
+      <li>
+        <button id="theme">
+          <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
+            <title>compare</title>
+            <path
+              d="M19,3H14V5H19V18L14,12V21H19A2,2 0 0,0 21,19V5C21,3.89 20.1,3 19,3M10,18H5L10,12M10,3H5C3.89,3 3,3.89 3,5V19A2,2 0 0,0 5,21H10V23H12V1H10V3Z"
+            />
+          </svg>
+        </button>
+      </li>
       <li>
         <button id="keyboard">
           <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">
diff --git a/js/integration.js b/js/integration.js
index 2df436f..b0db05c 100644
--- a/js/integration.js
+++ b/js/integration.js
@@ -48,12 +48,15 @@ const init = async () => {
     configuration_url: APP.homepage,
   };
 
-  // Connection settings
+  // Init options
   const masked = password === null ? null : "*".repeat(password.length);
   const options = user === null || password === null ? {} : { username: user, password: password };
   options.rejectUnauthorized = !("ignore_certificate_errors" in ARGS);
+
+  // Client connect
   console.log("MQTT Connecting:", `${user}:${masked}@${url.toString()}`);
   INTEGRATION.client = mqtt.connect(url.toString(), options);
+  INTEGRATION.client.setMaxListeners(20);
 
   // Client connected
   INTEGRATION.client
@@ -67,6 +70,7 @@ const init = async () => {
       initReboot();
       initRefresh();
       initKiosk();
+      initTheme();
       initDisplay();
       initVolume();
       initKeyboard();
@@ -97,6 +101,8 @@ const init = async () => {
     });
 
   // Update sensor states from events
+  EVENTS.on("updateStatus", updateKiosk);
+  EVENTS.on("updateTheme", updateTheme);
   EVENTS.on("updateDisplay", updateDisplay);
   EVENTS.on("updateVolume", updateVolume);
   EVENTS.on("updateKeyboard", updateKeyboard);
@@ -130,7 +136,6 @@ const update = async () => {
   }
 
   // Update client sensors
-  updateKiosk();
   updatePageNumber();
   updatePageZoom();
   updatePageUrl();
@@ -379,6 +384,41 @@ const updateKiosk = async () => {
   publishState("kiosk", kiosk);
 };
 
+/**
+ * Initializes the application theme and handles the execute logic.
+ */
+const initTheme = () => {
+  const root = `${INTEGRATION.root}/theme`;
+  const config = {
+    name: "Theme",
+    unique_id: `${INTEGRATION.node}_theme`,
+    command_topic: `${root}/set`,
+    state_topic: `${root}/state`,
+    value_template: "{{ value }}",
+    options: ["Light", "Dark"],
+    icon: "mdi:compare",
+    device: INTEGRATION.device,
+  };
+  publishConfig("select", config)
+    .on("message", (topic, message) => {
+      if (topic === config.command_topic) {
+        const theme = message.toString();
+        console.log("Set Application Theme:", theme);
+        WEBVIEW.theme.set(theme);
+      }
+    })
+    .subscribe(config.command_topic);
+  updateTheme();
+};
+
+/**
+ * Updates the application theme via the mqtt connection.
+ */
+const updateTheme = async () => {
+  const theme = WEBVIEW.theme.get();
+  publishState("theme", theme.charAt(0).toUpperCase() + theme.slice(1));
+};
+
 /**
  * Initializes the display status, brightness and handles the execute logic.
  */
diff --git a/js/webview.js b/js/webview.js
index bb464d8..57ef327 100644
--- a/js/webview.js
+++ b/js/webview.js
@@ -54,15 +54,37 @@ const init = async () => {
   WEBVIEW.viewActive = 0;
   WEBVIEW.viewUrls = urls;
   WEBVIEW.viewZoom = zoom;
-  WEBVIEW.viewTheme = theme;
-  WEBVIEW.pagerEnabled = widget;
-  WEBVIEW.widgetTheme = theme;
-  WEBVIEW.widgetEnabled = widget;
-  WEBVIEW.statusTheme = theme;
   WEBVIEW.statusEnabled = true;
-  WEBVIEW.navigationTheme = theme;
+  WEBVIEW.pagerEnabled = widget;
+  WEBVIEW.widgetEnabled = widget;
   WEBVIEW.navigationEnabled = widget;
-  nativeTheme.themeSource = WEBVIEW.viewTheme;
+
+  // Init global theme
+  WEBVIEW.theme = {
+    set: (name) => {
+      nativeTheme.themeSource = name.toLowerCase();
+    },
+    get: () => {
+      return nativeTheme.shouldUseDarkColors ? "dark" : "light";
+    },
+    toggle: () => {
+      nativeTheme.themeSource = nativeTheme.shouldUseDarkColors ? "light" : "dark";
+    },
+    register: () => {
+      nativeTheme.on("updated", () => {
+        const theme = WEBVIEW.theme.get();
+        WEBVIEW.statusTheme = theme;
+        WEBVIEW.widgetTheme = theme;
+        WEBVIEW.navigationTheme = theme;
+        if (WEBVIEW.initialized) {
+          resizeView();
+        }
+        EVENTS.emit("updateTheme");
+      });
+    },
+  };
+  WEBVIEW.theme.register();
+  WEBVIEW.theme.set(theme);
 
   // Init global root window
   WEBVIEW.display = screen.getPrimaryDisplay().workAreaSize;
@@ -190,10 +212,7 @@ const updateView = () => {
 
   // Update window title
   console.log(`Update View: ${title}`);
-  WEBVIEW.status.webContents.send("text-content", {
-    id: "title",
-    content: title,
-  });
+  WEBVIEW.status.webContents.send("text-content", { id: "title", content: title });
   WEBVIEW.window.setTitle(title);
 
   // Hide all other webviews and show only the active one
@@ -628,7 +647,7 @@ const windowEvents = async () => {
     const delta = (now - then) / 1000;
 
     // Auto-hide navigation
-    if (delta > 60) {
+    if (delta > 60 && WEBVIEW.tracker.status !== "Terminated") {
       toggleNavigation("OFF");
     }
   }, 1000);
@@ -675,6 +694,9 @@ const widgetEvents = async () => {
   // Handle widget button click events
   ipcMain.on("button-click", (e, button) => {
     switch (button.id) {
+      case "theme":
+        WEBVIEW.theme.toggle();
+        break;
       case "keyboard":
         const toggle = hardware.getKeyboardVisibility() === "ON" ? "OFF" : "ON";
         hardware.setKeyboardVisibility(toggle, () => {
@@ -711,14 +733,23 @@ const statusEvents = async () => {
         WEBVIEW.window.setStatus("Minimized");
         break;
       case "terminate":
+        WEBVIEW.status.webContents.send("button-disabled", { id: "fullscreen", disabled: true });
+        WEBVIEW.status.webContents.send("button-disabled", { id: "minimize", disabled: true });
+        WEBVIEW.status.webContents.send("button-disabled", { id: "terminate", disabled: true });
         const button = dialog.showMessageBoxSync(WEBVIEW.window, {
           type: "question",
           title: "Confirm",
           message: `\nExit ${APP.title}?`,
           buttons: ["No", "Yes"],
         });
-        if (button === 1) {
-          WEBVIEW.window.setStatus("Terminated");
+        switch (button) {
+          case 1:
+            WEBVIEW.window.setStatus("Terminated");
+            break;
+          default:
+            WEBVIEW.status.webContents.send("button-disabled", { id: "fullscreen", disabled: false });
+            WEBVIEW.status.webContents.send("button-disabled", { id: "minimize", disabled: false });
+            WEBVIEW.status.webContents.send("button-disabled", { id: "terminate", disabled: false });
         }
         break;
     }
@@ -863,7 +894,7 @@ const viewEvents = async () => {
         if (WEBVIEW.viewActive === 0 && ready.length === WEBVIEW.views.length) {
           nextView();
         }
-        view.webContents.loadURL(errorHtml(code, text, url));
+        view.webContents.loadURL(errorHtml(code, text, url, WEBVIEW.theme.get()));
       }
     });
 
@@ -1089,9 +1120,14 @@ const loaderHtml = (size, speed, theme) => {
  * @param {number} code - The error code of the response.
  * @param {string} text - The error text of the response.
  * @param {string} url - The url of the requested page.
+ * @param {string} theme - The theme used for text colors.
  * @returns {string} A data string with the generated html.
  */
-const errorHtml = (code, text, url) => {
+const errorHtml = (code, text, url, theme) => {
+  const color = {
+    dark: { icon: "#FFA500", text: "#E5E5E5", background: "#111111" },
+    light: { icon: "#FFA500", text: "#1A1A1A", background: "#FAFAFA" },
+  }[theme];
   const html = `
     <html>
       <head>
@@ -1099,17 +1135,25 @@ const errorHtml = (code, text, url) => {
           body {
             display: flex;
             align-items: center;
+            text-align: center;
             justify-content: center;
             font-family: sans-serif;
-            text-align: center;
+            background-color: ${color.background};
           }
           .icon {
             margin: 0;
             font-size: 5rem;
-            color: orange;
+            color: ${color.icon};
           }
           .title {
             margin: 0;
+            color: ${color.text};
+          }
+          .url {
+            color: ${color.text};
+          }
+          .error {
+            color: ${color.text};
           }
         </style>
       </head>
@@ -1117,8 +1161,8 @@ const errorHtml = (code, text, url) => {
         <div>
           <p class="icon">&#9888;</p>
           <h1 class="title">Whoopsie!</h1>
-          <p><strong>Loading:</strong> ${url}</p>
-          <p><strong>Error:</strong> ${text} (${code})</p>
+          <p class="url"><strong>Loading:</strong> ${url}</p>
+          <p class="error"><strong>Error:</strong> ${text} (${code})</p>
         </div>
       </body>
     </html>`;