Open-sourced some code

Scripts/User Interface/Menus/MainMenuOptions/Quit.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+
+namespace MenuSystem {
+	class Quit : MenuOption {
+		override public void Execute() {
+			Application.Quit();
+			Debug.Log("Quit called");
+		}
+	}
+}

Scripts/User Interface/Menus/MainMenuOptions/StartGame.cs

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+using System.Collections;
+using System.Collections.Generic;
+using UnityEngine;
+using UnityEngine.SceneManagement;
+
+namespace MenuSystem {
+	class StartGame : MenuOption {
+		override public void Execute() {
+			SceneManager.LoadScene("Gameplay");
+		}
+	}
+}