simplify/relocate PredefinedColoredAreas
fix tests
prevent swt leak
diff --git a/tests/org.eclipse.graphiti.testtool.sketch/src/org/eclipse/graphiti/testtool/sketch/features/GradientColorFeature.java b/tests/org.eclipse.graphiti.testtool.sketch/src/org/eclipse/graphiti/testtool/sketch/features/GradientColorFeature.java
index b7c0f8d..5c740d5 100644
--- a/tests/org.eclipse.graphiti.testtool.sketch/src/org/eclipse/graphiti/testtool/sketch/features/GradientColorFeature.java
+++ b/tests/org.eclipse.graphiti.testtool.sketch/src/org/eclipse/graphiti/testtool/sketch/features/GradientColorFeature.java
@@ -27,8 +27,8 @@
 import org.eclipse.graphiti.mm.pictograms.GraphicsAlgorithm;
 import org.eclipse.graphiti.mm.pictograms.PictogramElement;
 import org.eclipse.graphiti.services.Graphiti;
-import org.eclipse.graphiti.ui.PredefinedColoredAreas;
 import org.eclipse.graphiti.util.IPredefinedRenderingStyle;
+import org.eclipse.graphiti.util.PredefinedColoredAreas;
 
 /**
  * The Class GradientColorFeature.