Move ruleset config to main scene. Add title for UI.

Assets/Cryville/Crtr/Menu.cs

@@ -1,5 +1,7 @@
 using Cryville.Common.Unity.UI;
 using Cryville.Crtr.Browsing;
+using System.Collections.Generic;
+using TMPro;
 using UnityEngine;
 
 namespace Cryville.Crtr {
@@ -13,6 +15,8 @@ namespace Cryville.Crtr {
 		ProgressBar m_progressBar;
 		[SerializeField]
 		SettingsPanel m_settingsPanel;
+		[SerializeField]
+		TMP_Text m_title;
 #pragma warning restore IDE0044
 
 		int frameIndex = 2;
@@ -23,6 +27,7 @@ namespace Cryville.Crtr {
 			Game.Init();
 			transform.parent.Find("Canvas/Contents").gameObject.SetActive(true);
 			m_settingsPanel.Target = Settings.Default;
+			PushTitle("Chart Browser");
 		}
 		void Update() {
 			if (!initialized) {
@@ -54,9 +59,17 @@ namespace Cryville.Crtr {
 		}
 #pragma warning restore IDE0051
 
+		readonly Stack<string> _uiStack = new Stack<string>();
+		public void PushTitle(string title) {
+			_uiStack.Push(title);
+			m_title.SetText(title);
+		}
 		public void Back() {
 			if (m_browserMaster.Back()) return;
 			m_targetAnimator.SetTrigger("G_Back");
+			if (_uiStack.Count <= 1) return;
+			_uiStack.Pop();
+			m_title.SetText(_uiStack.Peek());
 		}
 		public void Quit() {
 			Application.Quit();