ImageExplainer.getExplainer(VisualModelFinder.class).setLevel(Level.STEP);
Rectangle b = simulator.getBounds();
ScreenRegion s = new DesktopScreenRegion(b.x,b.y,b.width,b.height);
StyledRectangleTarget target = new StyledRectangleTarget(Images.CalculatorButton);
// Target target = new StyledRectangleTarget(new URL("file:wally.png"));
// Target target = new ImageTarget(Images.CalculatorButton);
target.setLimit(20);
List<ScreenRegion> rs = s.findAll(target);
for (ScreenRegion r : rs){