Fullscreen mode dropdown

Assets/Scenes/SampleScene.unity

@@ -541,6 +541,14 @@ PrefabInstance:
       propertyPath: eventSystem
       value: 
       objectReference: {fileID: 775644865}
+    - target: {fileID: 2702070852302166608, guid: 7671830e57aa4bd4cab63b8399c6f825, type: 3}
+      propertyPath: m_text
+      value: Windowed
+      objectReference: {fileID: 0}
+    - target: {fileID: 3281526541317417273, guid: 7671830e57aa4bd4cab63b8399c6f825, type: 3}
+      propertyPath: m_IsActive
+      value: 0
+      objectReference: {fileID: 0}
     - target: {fileID: 4394421820928219480, guid: 7671830e57aa4bd4cab63b8399c6f825, type: 3}
       propertyPath: m_Name
       value: MainMenu

Assets/Scripts/MainMenuManager.cs

@@ -1,9 +1,11 @@
 using System;
 using NaughtyAttributes;
 using TMPro;
+using UnityEditor;
 using UnityEngine;
 using UnityEngine.EventSystems;
 using UnityEngine.SceneManagement;
+using UnityEngine.UI;
 using Random = UnityEngine.Random;
 
 public class MainMenuManager : MonoBehaviour {
@@ -15,17 +17,27 @@ public class MainMenuManager : MonoBehaviour {
 
 	[SerializeField] [Required]
 	TMP_Text titleLabel;
+
 	[SerializeField] string[] titleOptions;
+
 	[SerializeField] [Required]
 	Transform startMenuParent;
+
 	[SerializeField] [Required]
 	Transform pauseParent;
+
 	[SerializeField] [Required]
 	Transform optionsParent;
+
 	[SerializeField] [Required]
 	GameTimer gameTimer;
+
 	[SerializeField] [Required]
 	EventSystem eventSystem;
+
+	[SerializeField] [Required]
+	TMP_Dropdown displayModeDropdown;
+
 	MenuMode mode;
 	MenuMode? preOptionsMode;
 
@@ -83,4 +95,13 @@ public class MainMenuManager : MonoBehaviour {
 	public void QuitGame() => Application.Quit(0);
 
 	public void ResetHighScore() => gameTimer.ResetHighScore();
+
+	public void DisplayModeChange() {
+		Screen.fullScreenMode = displayModeDropdown.value switch {
+			0 => FullScreenMode.Windowed,
+			1 => FullScreenMode.ExclusiveFullScreen,
+			2 => FullScreenMode.FullScreenWindow,
+			_ => Screen.fullScreenMode
+		};
+	}
 }