Add TextColor property to set base text color at runtime

TextControlBox/Core/CoreTextControlBox.xaml.cs

@@ -1076,6 +1076,21 @@ public TextControlBoxDesign Design
         set => designHelper.Design = value;
     }
 
+    public Windows.UI.Color TextColor
+    {
+        get => designHelper._Design.TextColor;
+        set
+        {
+            if (designHelper._Design.TextColor.Equals(value))
+                return;
+
+            designHelper._Design.TextColor = value;
+            designHelper.ColorResourcesCreated = false;
+            textRenderer.NeedsUpdateTextLayout = true;
+            canvasUpdateManager.UpdateAll();
+        }
+    }
+
     public bool ShowLineNumbers
     {
         get => lineNumberManager._ShowLineNumbers;

TextControlBox/TextControlBox.cs

@@ -788,6 +788,19 @@ public TextControlBoxDesign Design
         set => coreTextBox.Design = value;
     }
 
+    /// <summary>
+    /// Gets or sets the color of the editor body text.
+    /// </summary>
+    /// <remarks>
+    /// This is the base text color. When syntax highlighting is enabled, per-token colors from the
+    /// active <see cref="SyntaxHighlighting"/> still take precedence for highlighted tokens.
+    /// </remarks>
+    public Windows.UI.Color TextColor
+    {
+        get => coreTextBox.TextColor;
+        set => coreTextBox.TextColor = value;
+    }
+
     /// <summary>
     /// Gets or sets a value indicating whether line numbers should be displayed in the textbox.
     /// </summary>