void (Component c, Graphics g, int x, int y, int width, int height) { GraphicsConfig config = GraphicsUtil.setupAAPainting(g); g.setColor(myColor); int thickness = JBUI.scale(myThinBorder ? 1 : myThickness); int arcSize = JBUI.scale(myArcSize); Area area = new Area(new RoundRectangle2D.Double(x, y, width, height, arcSize, arcSize)); int innerArc = Math.max(arcSize - thickness, 0); area.subtract(new Area(new RoundRectangle2D.Double(x + thickness, y + thickness, width - 2 * thickness, height - 2 * thickness, innerArc, innerArc))); ((Graphics2D)g).fill(area); config.restore(); }