Jason

Safari浏览器，Chrome中一切正常

eraser like this: ```java public JButton getEraserButton() { if (eraserButton == null) { eraserButton = new JButton("eraser"); eraserButton.addActionListener(e -> { deactivateTool(); activeTool = PaintToolBuilder.create(PaintToolType.ERASER) .makeActiveOnCanvas(getImageCanvas()) .withStroke(StrokeBuilder.withShape().ofRectangle(20, 20).build()) .build(); }); }...