如何在wicket中更改颜色后刷新标签

<dependency>
    <groupId>org.apache.wicket</groupId>
    <artifactId>wicket-core</artifactId>
    <version>8.14.0</version>
</dependency>

<span wicket:id="colorLabel">This is a colored label</span>

private Label colorLabel;

colorLabel = new Label("colorLabel", "This is a colored label");
colorLabel.add(AttributeModifier.replace("style", "color: red")); // 设置初始颜色为红色
add(colorLabel);

Button changeColorButton = new Button("changeColorButton") {
    @Override
    public void onSubmit() {
        colorLabel.add(AttributeModifier.replace("style", "color: blue")); // 修改颜色为蓝色
    }
};
add(changeColorButton);

colorLabel.setOutputMarkupId(true); // 启用Ajax刷新
target.add(colorLabel); // 刷新标签