diff --git a/package-lock.json b/package-lock.json
index d4acebb..69f74e7 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -10,7 +10,8 @@
       "dependencies": {
         "react": "^18.0.0",
         "react-dom": "^18.0.0",
-        "react-scripts": "^5.0.0"
+        "react-scripts": "^5.0.0",
+        "react-switch": "^7.0.0"
       },
       "devDependencies": {}
     },
@@ -14072,6 +14073,18 @@
         }
       }
     },
+    "node_modules/react-switch": {
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/react-switch/-/react-switch-7.0.0.tgz",
+      "integrity": "sha512-KkDeW+cozZXI6knDPyUt3KBN1rmhoVYgAdCJqAh7st7tk8YE6N0iR89zjCWO8T8dUTeJGTR0KU+5CHCRMRffiA==",
+      "dependencies": {
+        "prop-types": "^15.7.2"
+      },
+      "peerDependencies": {
+        "react": "^15.3.0 || ^16.0.0 || ^17.0.0 || ^18.0.0",
+        "react-dom": "^15.3.0 || ^16.0.0 || ^17.0.0 || ^18.0.0"
+      }
+    },
     "node_modules/read-cache": {
       "version": "1.0.0",
       "resolved": "https://registry.npmjs.org/read-cache/-/read-cache-1.0.0.tgz",
@@ -15953,16 +15966,16 @@
       }
     },
     "node_modules/typescript": {
-      "version": "5.2.2",
-      "resolved": "https://registry.npmjs.org/typescript/-/typescript-5.2.2.tgz",
-      "integrity": "sha512-mI4WrpHsbCIcwT9cF4FZvr80QUeKvsUsUvKDoR+X/7XHQH98xYD8YHZg7ANtz2GtZt/CBq2QJ0thkGJMHfqc1w==",
+      "version": "4.9.5",
+      "resolved": "https://registry.npmjs.org/typescript/-/typescript-4.9.5.tgz",
+      "integrity": "sha512-1FXk9E2Hm+QzZQ7z+McJiHL4NW1F2EzMu9Nq9i3zAaGqibafqYwCVU6WyWAuyQRRzOlxou8xZSyXLEN8oKj24g==",
       "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
       },
       "engines": {
-        "node": ">=14.17"
+        "node": ">=4.2.0"
       }
     },
     "node_modules/unbox-primitive": {
diff --git a/package.json b/package.json
index 2c033c3..a686f46 100644
--- a/package.json
+++ b/package.json
@@ -2,10 +2,10 @@
   "dependencies": {
     "react": "^18.0.0",
     "react-dom": "^18.0.0",
-    "react-scripts": "^5.0.0"
+    "react-scripts": "^5.0.0",
+    "react-switch": "^7.0.0"
   },
   "main": "/index.js",
-  "devDependencies": {},
   "name": "vy6j3f",
   "description": null,
   "version": "0.0.0",
diff --git a/src/App.js b/src/App.js
index d1b7ac9..0ffbb3f 100644
--- a/src/App.js
+++ b/src/App.js
@@ -1,4 +1,6 @@
 import { useState } from "react";
+import ReactSwitch from "react-switch";
+
 
 function Square({ value, onSquareClick }) {
   return (
@@ -57,6 +59,11 @@ export default function Game() {
   const [currentMove, setCurrentMove] = useState(0);
   const xIsNext = currentMove % 2 === 0;
   const currentSquares = history[currentMove];
+  const [theme, setTheme] = useState("dark");
+
+  const toggleTheme = () => {
+    setTheme((curr) => (curr === "light" ? "dark" : "light"));
+  };
 
   function handlePlay(nextSquares) {
     const nextHistory = [...history.slice(0, currentMove + 1), nextSquares];
@@ -85,7 +92,9 @@ export default function Game() {
   });
 
   return (
-    <div className="game">
+    <div className="game" id={theme}>
+      <label>{theme === "light" ? "Light Mode" : "Dark Mode"}</label>
+      <ReactSwitch onChange={toggleTheme} checked={theme === "dark"} />
       <div className="game-board">
         <Board xIsNext={xIsNext} squares={currentSquares} onPlay={handlePlay} />
       </div>
diff --git a/src/styles.css b/src/styles.css
index 1f5fc24..b092b6f 100644
--- a/src/styles.css
+++ b/src/styles.css
@@ -2,6 +2,9 @@
   box-sizing: border-box;
 }
 
+
+
+
 body {
   font-family: sans-serif;
   margin: 20px;
@@ -89,6 +92,31 @@ body {
   margin-left: 20px;
 }
 
+#light {
+  color: #000;
+  background-color: #fff;
+}
+
+#light .square {
+  color: #000;
+  background-color: #fff;
+}
+
+#dark {
+  color: #fff;
+  background-color: #000000;
+}
+
+#dark .square {
+  color: #fff;
+  background-color: #000000;
+}
+
+#dark button {
+  color: #fff;
+  background-color: #5c5c5c;
+}
+
 .X {
   color: blue;
 }
@@ -121,4 +149,4 @@ body {
   content: counter(move);
   margin-right: 16px;
   font-weight: bold; 
-}
\ No newline at end of file
+}