from textual.app import App, ComposeResult from textual.containers import VerticalScroll from textual.widgets import Checkbox class CheckboxApp(App[None]): CSS_PATH = "checkbox.css" def compose(self) -> ComposeResult: with VerticalScroll(): yield Checkbox("Arrakis :sweat:") yield Checkbox("Caladan") yield Checkbox("Chusuk") yield Checkbox("[b]Giedi Prime[/b]") yield Checkbox("[magenta]Ginaz[/]") yield Checkbox("Grumman", True) yield Checkbox("Kaitain", id="initial_focus") yield Checkbox("Novebruns", True) def on_mount(self): self.query_one("#initial_focus", Checkbox).focus() if __name__ == "__main__": CheckboxApp().run()