From b28bc7c65a99f78a899d823dd85697fb91f9a06a Mon Sep 17 00:00:00 2001
From: Steven Kirk <grokys@gmail.com>
Date: Thu, 29 Jun 2017 12:08:25 +0200
Subject: [PATCH] Convert brushes to immutable brushes in FormattedTextImpl.

They need to be accessed from the render thread.
---
 src/Skia/Avalonia.Skia/FormattedTextImpl.cs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/Skia/Avalonia.Skia/FormattedTextImpl.cs b/src/Skia/Avalonia.Skia/FormattedTextImpl.cs
index 8568c80c04..569849fa86 100644
--- a/src/Skia/Avalonia.Skia/FormattedTextImpl.cs
+++ b/src/Skia/Avalonia.Skia/FormattedTextImpl.cs
@@ -616,6 +616,7 @@ namespace Avalonia.Skia
 
             if (brush != null)
             {
+                brush = ((IMutableBrush)brush)?.ToImmutable() ?? brush;
                 _foregroundBrushes.Insert(0, new KeyValuePair<FBrushRange, IBrush>(key, brush));
             }
         }