use bevy::prelude::*; pub fn ui_plugin(app: &mut App) { app.add_systems(Startup, setup_ui); } fn setup_ui(mut commands: Commands) { commands.spawn(( Node { width: Val::Percent(100.), height: Val::Percent(100.), ..Default::default() }, children![( Node { width: Val::Px(32.0), height: Val::Px(32.0), ..Default::default() }, BackgroundColor(Color::LinearRgba(LinearRgba::rgb(1.0, 1.0, 1.0))), )], )); }