an example using toggle- and check-button.

examples/02_toggles.pm6

@@ -0,0 +1,25 @@
+use GTK::Simple;
+
+my GTK::Simple::App $app .= new(title => "Toggle buttons");
+
+$app.set_content(
+    GTK::Simple::VBox.new(
+        my $check_button  = GTK::Simple::CheckButton.new(label => "check me out!"),
+        my $status_label  = GTK::Simple::Label.new(text => "the toggles are off and off"),
+        my $toggle_button = GTK::Simple::ToggleButton.new(label=> "time to toggle!"),
+    )
+);
+
+$app.border_width = 50;
+
+enum ToggleState <off on>;
+
+sub update_label($b) {
+    $status_label.text = "the toggles are " ~
+        ($check_button, $toggle_button)>>.status.map({ ToggleState $_ }).join(" and ");
+}
+
+$check_button\.toggled.tap: &update_label;
+$toggle_button.toggled.tap: &update_label;
+
+$app.run;