List<RangeHighlighter> () { highlighter.setLineSeparatorPlacement(placement); highlighter.setLineSeparatorRenderer(lineRenderer); highlighter.setLineMarkerRenderer(gutterRenderer); if (stripeAttributes == null) return Collections.singletonList(highlighter); RangeHighlighter stripeHighlighter = editor.getMarkupModel() .addRangeHighlighter(offset, offset, STRIPE_LAYER, stripeAttributes, HighlighterTargetArea.LINES_IN_RANGE); return Arrays.asList(highlighter, stripeHighlighter); }