diff --git a/.gitignore b/.gitignore
index 687859ea784..dbddb3c2bb6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -10,3 +10,4 @@ pom.tycho
 /binaries/org.eclipse.swt.*/src/
 tmpdir/
 ‎build_gtk.sh
+build_gtk.sh
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Tree.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Tree.java
index 3b2b5523d33..dbbb13ac8a1 100644
--- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Tree.java	
+++ b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Tree.java	
@@ -1557,13 +1557,15 @@ public int getColumnCount () {
 
 @Override
 GdkRGBA getContextBackgroundGdkRGBA () {
-	if (background != null) {
-		return background;
-	} else {
-		// For Tables and Trees, the default background is
-		// COLOR_LIST_BACKGROUND instead of COLOR_WIDGET_BACKGROUND.
-		return defaultBackground();
-	}
+	// Bug 2702: When a custom background is set, delegate to Control's implementation
+	// which parses from the CSS provider. This prevents focus issues that occur when
+	// returning the stored background field value directly.
+	if (background != null && background != defaultBackground()) {
+		return super.getContextBackgroundGdkRGBA();
+	}
+	// For Tables and Trees, the default background is
+	// COLOR_LIST_BACKGROUND instead of COLOR_WIDGET_BACKGROUND.
+	return defaultBackground();
 }
 
 @Override