// add an image to the top-left corner of the rectangle
Image img = SampleImageProvider.createImage(roundedRect, customTaskDescriptor, 38, 38);
Graphiti.getGaService().setLocation(img, 2, 2);

            Shape shape = containerShape.getChildren().get(0);
            // now clear all existing children of that shape...
            shape.getGraphicsAlgorithm().getGraphicsAlgorithmChildren().clear(); 

			Shape shape = containerShape.getChildren().get(0);
			// now we need to clear all existing children of that shape...
			shape.getGraphicsAlgorithm().getGraphicsAlgorithmChildren().clear();

			// set background color
			ShapeStyle shapeStyle = new ShapeStyle();
			shapeStyle.setDefaultColors(PROCESSENTITY_BACKGROUND);

			// add the blank image into the upper left corner....
			Image imga = loadCustomTaskIcon("my-blank-image.png", shape.getGraphicsAlgorithm());
			Graphiti.getGaService().setLocationAndSize(imga, 2, 2, 24, 24);

		String imageId = fileName;
		String filename = "/icons/large/" + fileName;
		URL url = getClass().getClassLoader().getResource(filename);
		ImageDescriptor descriptor = ImageDescriptor.createFromURL(url);

		CustomTaskImageProvider.registerImage(imageId, descriptor);
		Image img = Graphiti.getGaService().createImage(ga, imageId);
		img.setProportional(false);
		img.setWidth(16);
		img.setHeight(16);
		img.setStretchH(true);
		img.setStretchV(true);