I am trying to draw an ellipse within a margin, based on a given line number. I am having difficulties getting the ellipse to line up correctly with the line number. I've attached an image that illustrates the problem - the displayed ellipse is intended to be on line 4.
How can I get an ellipse to show up, for a given line number, next to the text outline margin within the editor window? How can I ensure that the ellipse lines up correctly with the given line number?