refactoring enums

App/Types/AccentColors.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Windows.Media;
+
+namespace ModernWpfPlayground.Types
+{
+    public enum AccentColors
+    {
+        Green,
+        Yellow,
+        Blue,
+        Purple,
+        Red
+    }
+
+    public static class AccentColorExtension
+    {
+        public static Color ToWindowsColor(this AccentColors accentColor)
+        {
+            return accentColor switch
+            {
+                AccentColors.Green => Color.FromRgb(0, 86, 76),
+                AccentColors.Yellow => Color.FromRgb(164, 144, 0),
+                AccentColors.Blue => Color.FromRgb(0, 120, 215),
+                AccentColors.Purple => Color.FromRgb(104, 33, 122),
+                AccentColors.Red => Color.FromRgb(183, 71, 42),
+                _ => throw new ArgumentOutOfRangeException(nameof(accentColor), accentColor, null)
+            };
+        }
+    }
+}

App/Types/ThemeMode.cs

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+using System;
+using System.ComponentModel;
+using ModernWpf;
+
+namespace ModernWpfPlayground.Types
+{
+    public enum ThemeMode
+    {
+        [Description("Light")] Light,
+        [Description("Dark")] Dark,
+        [Description("Use system setting")] UseSystemSetting
+    }
+
+    public static class ThemeModeExtension
+    {
+        public static ApplicationTheme? ToApplicationTheme(this ThemeMode themeMode)
+        {
+            return themeMode switch
+            {
+                ThemeMode.Light => ApplicationTheme.Light,
+                ThemeMode.Dark => ApplicationTheme.Dark,
+                ThemeMode.UseSystemSetting => default,
+                _ => throw new ArgumentOutOfRangeException(nameof(themeMode), themeMode, null)
+            };
+        } 
+    }
+}