protected AnnotationAttributes getAnnotationPanelAttributes(String annoText) {
AnnotationAttributes attrs = new AnnotationAttributes();
attrs.setAdjustWidthToText(AVKey.SIZE_FIXED);
attrs.setSize(this.computePanelSize(annoText));
attrs.setFrameShape(AVKey.SHAPE_RECTANGLE);
attrs.setTextColor(Color.WHITE);
attrs.setBackgroundColor(new Color(0f, 0f, 0f, 0.6f));
attrs.setCornerRadius(10);
attrs.setInsets(new Insets(10, 10, 0, 0));
attrs.setBorderColor(new Color(0xababab));
attrs.setFont(Font.decode("Arial-PLAIN-12"));
attrs.setTextAlign(AVKey.LEFT);
return attrs;
}