优化更新代码，添加界面功能并整合

WPFluent/Controls/Badge/Badge.cs

@@ -0,0 +1,33 @@
+
+
+
+// https://docs.microsoft.com/en-us/fluent-ui/web-components/components/badge
+
+// ReSharper disable once CheckNamespace
+namespace WPFluent.Controls;
+
+/// <summary>
+/// Used to highlight an item, attract attention or flag status.
+/// </summary>
+/// <example>
+/// <code lang="xml"> /// &lt;ui:Badge Appearance="Secondary"&gt; ///     &lt;TextBox Text="Hello" /&gt; ///
+/// &lt;/ui:Badge&gt; ///</code>
+/// </example>
+public class Badge : System.Windows.Controls.ContentControl, IAppearanceControl
+{
+    /// <summary>
+    /// Identifies the <see cref="Appearance"/> dependency property.
+    /// </summary>
+    public static readonly DependencyProperty AppearanceProperty = DependencyProperty.Register(
+        nameof(Appearance),
+        typeof(Controls.ControlAppearance),
+        typeof(Badge),
+        new PropertyMetadata(Controls.ControlAppearance.Primary));
+
+    /// <inheritdoc/>
+    public Controls.ControlAppearance Appearance
+    {
+        get => (Controls.ControlAppearance)GetValue(AppearanceProperty);
+        set => SetValue(AppearanceProperty, value);
+    }
+}