优化更新代码，添加界面功能并整合

WPFluent/Markup/ThemeResourceExtension.cs

@@ -0,0 +1,39 @@
+
+
+
+using System.Windows.Markup;
+
+namespace WPFluent.Markup;
+
+/// <summary>
+/// Class for Xaml markup extension for static resource references.
+/// </summary>
+/// <example>
+/// <code lang="xml"> /// &lt;ui:Button ///     Appearance="Primary" ///     Content="WPF UI button with font icon" /// 
+///    Foreground={ui:ThemeResource SystemAccentColorPrimaryBrush} /&gt; ///</code> <code lang="xml"> /// &lt;ui:TextBox
+/// Foreground={ui:ThemeResource TextFillColorSecondaryBrush} /&gt; ///</code>
+/// </example>
+[TypeConverter(typeof(DynamicResourceExtensionConverter))]
+[ContentProperty(nameof(ResourceKey))]
+[MarkupExtensionReturnType(typeof(object))]
+public class ThemeResourceExtension : DynamicResourceExtension
+{
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ThemeResourceExtension"/> class.
+    /// </summary>
+    public ThemeResourceExtension() { ResourceKey = ThemeResource.ApplicationBackgroundBrush.ToString(); }
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="ThemeResourceExtension"/> class. Takes the resource key that this
+    /// is a static reference to.
+    /// </summary>
+    public ThemeResourceExtension(ThemeResource resourceKey)
+    {
+        if(resourceKey == ThemeResource.Unknown)
+        {
+            throw new ArgumentNullException(nameof(resourceKey));
+        }
+
+        ResourceKey = resourceKey.ToString();
+    }
+}