@CssImport(value = "./styles/material/theme.css", themeFor = "vaadin-button") public class MyCustomButton extends Button { // ... } @CssImport(value = "./styles/material/theme.css", themeFor = "vaadin-button") public class MyCustomButton extends Button { public MyCustomButton(String text) { super(text); addClassName("custom-button"); } protected void applyTheme() { getStyle().set("background-color", "blue"); getStyle().set("color", "white"); getStyle().set("font-size", "14px"); } protected void onHover() { getStyle().set("background-color", "lightblue"); } protected void onPress() { getStyle().set("background-color", "darkblue"); } } public class MainView extends VerticalLayout { public MainView() { MyCustomButton customButton = new MyCustomButton("Click me!"); customButton.addClickListener(e -> Notification.show("Button clicked!")); add(customButton); } }


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