From 4e072cd3e76170dc1106c2da423e71feace3eed0 Mon Sep 17 00:00:00 2001
From: Neil <nyamatongwe@gmail.com>
Date: Tue, 3 Dec 2019 19:18:23 +1100
Subject: Bug [#2144]. Fixed drawing of translucent rounded rectangles with
 Direct2D.

---
 doc/ScintillaHistory.html | 4 ++++
 win32/PlatWin.cxx         | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/doc/ScintillaHistory.html b/doc/ScintillaHistory.html
index 05e03640f..08483affd 100644
--- a/doc/ScintillaHistory.html
+++ b/doc/ScintillaHistory.html
@@ -609,6 +609,10 @@
 	<a href="https://sourceforge.net/p/scintilla/bugs/2137/">Bug #2137</a>.
 	</li>
 	<li>
+	Fixed drawing of translucent rounded rectangles on Win32 with Direct2D.
+	<a href="https://sourceforge.net/p/scintilla/bugs/2144/">Bug #2144</a>.
+	</li>
+	<li>
 	Setting rectangular selection made faster.
 	<a href="https://sourceforge.net/p/scintilla/bugs/2130/">Bug #2130</a>.
 	</li>
diff --git a/win32/PlatWin.cxx b/win32/PlatWin.cxx
index d449e78a9..6f0c6553b 100644
--- a/win32/PlatWin.cxx
+++ b/win32/PlatWin.cxx
@@ -1361,7 +1361,7 @@ void SurfaceD2D::AlphaRectangle(PRectangle rc, int cornerSize, ColourDesired fil
 			const float cornerSizeF = static_cast<float>(cornerSize);
 			D2D1_ROUNDED_RECT roundedRectFill = {
 				D2D1::RectF(std::round(rc.left) + 1.0f, rc.top + 1.0f, std::round(rc.right) - 1.0f, rc.bottom - 1.0f),
-				cornerSizeF, cornerSizeF};
+				cornerSizeF - 1.0f, cornerSizeF - 1.0f };
 			D2DPenColour(fill, alphaFill);
 			pRenderTarget->FillRoundedRectangle(roundedRectFill, pBrush);
 
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