Fix #332

Author: JimBobSquarePants

src/ImageSharp.Drawing/Processing/RichTextOptions.cs

@@ -16,8 +16,7 @@ public class RichTextOptions : TextOptions
     /// <param name="font">The font.</param>
     public RichTextOptions(Font font)
         : base(font)
-    {
-    }
+        => this.TextRuns = Array.Empty<RichTextRun>();
 
     /// <summary>
     /// Initializes a new instance of the <see cref="RichTextOptions" /> class from properties

tests/ImageSharp.Drawing.Tests/Issues/Issue_332.cs

@@ -0,0 +1,18 @@
+// Copyright (c) Six Labors.
+// Licensed under the Six Labors Split License.
+
+using SixLabors.Fonts;
+using SixLabors.ImageSharp.Drawing.Processing;
+
+namespace SixLabors.ImageSharp.Drawing.Tests.Issues;
+
+public class Issue_332
+{
+    [Fact]
+    public void CanAccessEmptyRichTextRuns()
+    {
+        Font font = TestFontUtilities.GetFont(TestFonts.OpenSans, 70);
+        RichTextOptions options = new(font);
+        Assert.Empty(options.TextRuns);
+    }
+}