extern crate cursive; use cursive::Cursive; use cursive::views::Dialog; use cursive::theme::BorderStyle; fn main() { let mut siv = Cursive::new(); siv.add_layer(Dialog::text("This is a dynamic theme example!") .button("Change", |s| { let mut theme = s.current_theme().clone(); theme.shadow = !theme.shadow; theme.borders = match theme.borders { Some(BorderStyle::Simple) => Some(BorderStyle::Outset), Some(BorderStyle::Outset) => None, None => Some(BorderStyle::Simple), }; s.set_theme(theme); }) .button("Quit", Cursive::quit)); siv.run(); }