docs: protected BufferedImage createErrorImage(final Rectangle area) {
          final BufferedImage bufferedImage = new BufferedImage(area.width, area.height, TYPE_INT_ARGB_PRE);
          final Graphics2D graphics = bufferedImage.createGraphics();
          try {
              graphics.setBackground(ColorParser.toColor(this.configuration.getTransparentTileErrorColor()));
              graphics.clearRect(0, 0, area.width, area.height);
              return bufferedImage;
          } finally {
              graphics.dispose();
          }
      }