添加项目文件。

MetroGauges/PaletteSelector.xaml.cs

@@ -0,0 +1,25 @@
+using System.Configuration;
+using System.Windows.Controls;
+
+namespace MetroGauges.Controls
+{
+    /// <summary>
+    /// PaletteSelector.xaml 的交互逻辑
+    /// </summary>
+    public partial class PaletteSelector : UserControl
+    {
+        public PaletteSelector()
+        {
+            InitializeComponent();
+            var x = ConfigurationManager.AppSettings["Intensity"];
+            if (x == "Dark")
+            {
+                Intensity.IsChecked = true;
+            }
+            if (x == "Light")
+            {
+                Intensity.IsChecked = false;
+            }
+        }
+    }
+}