diff --git a/TemplateGenerator/Models/Th095/Definitions.cs b/TemplateGenerator/Models/Th095/Definitions.cs
index 66aab5e5..1b9ebeba 100644
--- a/TemplateGenerator/Models/Th095/Definitions.cs
+++ b/TemplateGenerator/Models/Th095/Definitions.cs
@@ -1,6 +1,5 @@
 using System.Collections.Generic;
 using System.Linq;
-using TemplateGenerator.Extensions;
 using ThScoreFileConverter.Core.Extensions;
 using ThScoreFileConverter.Core.Helpers;
 using ThScoreFileConverter.Core.Models.Th095;
@@ -15,18 +14,20 @@ public static class Definitions
 
     public static IReadOnlyDictionary<string, (string Id, string Name)> LevelNames { get; } = new[]
     {
-        (Level.One,   ("Level1",  "Level 1")),
-        (Level.Two,   ("Level2",  "Level 2")),
-        (Level.Three, ("Level3",  "Level 3")),
-        (Level.Four,  ("Level4",  "Level 4")),
-        (Level.Five,  ("Level5",  "Level 5")),
-        (Level.Six,   ("Level6",  "Level 6")),
-        (Level.Seven, ("Level7",  "Level 7")),
-        (Level.Eight, ("Level8",  "Level 8")),
-        (Level.Nine,  ("Level9",  "Level 9")),
-        (Level.Ten,   ("Level10", "Level 10")),
-        (Level.Extra, ("Extra",   "Level Extra")),
-    }.ToPatternKeyedDictionary();
+        (Level.One,   "Level1"),
+        (Level.Two,   "Level2"),
+        (Level.Three, "Level3"),
+        (Level.Four,  "Level4"),
+        (Level.Five,  "Level5"),
+        (Level.Six,   "Level6"),
+        (Level.Seven, "Level7"),
+        (Level.Eight, "Level8"),
+        (Level.Nine,  "Level9"),
+        (Level.Ten,   "Level10"),
+        (Level.Extra, "Extra"),
+    }.ToDictionary(
+        static pair => pair.Item1.ToPattern(),
+        static pair => (pair.Item2, pair.Item1.ToDisplayName()));
 
     public static IReadOnlyDictionary<string, int> NumScenesPerLevel { get; } =
         EnumHelper<Level>.Enumerable.ToDictionary(
diff --git a/ThScoreFileConverter.Core/Models/Th095/Level.cs b/ThScoreFileConverter.Core/Models/Th095/Level.cs
index 02edd3d0..03b3d6f7 100644
--- a/ThScoreFileConverter.Core/Models/Th095/Level.cs
+++ b/ThScoreFileConverter.Core/Models/Th095/Level.cs
@@ -5,6 +5,8 @@
 // </copyright>
 //-----------------------------------------------------------------------
 
+using System.ComponentModel.DataAnnotations;
+
 namespace ThScoreFileConverter.Core.Models.Th095;
 
 /// <summary>
@@ -15,66 +17,77 @@ public enum Level
     /// <summary>
     /// Represents level 1.
     /// </summary>
+    [Display(Name = "Level 1")]
     [Pattern("1")]
     One,
 
     /// <summary>
     /// Represents level 2.
     /// </summary>
+    [Display(Name = "Level 2")]
     [Pattern("2")]
     Two,
 
     /// <summary>
     /// Represents level 3.
     /// </summary>
+    [Display(Name = "Level 3")]
     [Pattern("3")]
     Three,
 
     /// <summary>
     /// Represents level 4.
     /// </summary>
+    [Display(Name = "Level 4")]
     [Pattern("4")]
     Four,
 
     /// <summary>
     /// Represents level 5.
     /// </summary>
+    [Display(Name = "Level 5")]
     [Pattern("5")]
     Five,
 
     /// <summary>
     /// Represents level 6.
     /// </summary>
+    [Display(Name = "Level 6")]
     [Pattern("6")]
     Six,
 
     /// <summary>
     /// Represents level 7.
     /// </summary>
+    [Display(Name = "Level 7")]
     [Pattern("7")]
     Seven,
 
     /// <summary>
     /// Represents level 8.
     /// </summary>
+    [Display(Name = "Level 8")]
     [Pattern("8")]
     Eight,
 
     /// <summary>
     /// Represents level 9.
     /// </summary>
+    [Display(Name = "Level 9")]
     [Pattern("9")]
     Nine,
 
     /// <summary>
     /// Represents level 10.
     /// </summary>
+    [Display(Name = "Level 10")]
     [Pattern("0")]
     Ten,
 
     /// <summary>
     /// Represents level Extra.
     /// </summary>
+    [Display(Name = "Level Extra")]
     [Pattern("X")]
     Extra,
 }