small stuff

src/layout/ui.rs

@@ -43,7 +43,7 @@ impl UIBuilder {
     }
 
     pub fn finish<W: WidgetLike>(mut self, base: W) -> UI {
-        let base = base.id(&mut self).erase_type();
+        let base = base.add(&mut self).erase_type();
         let mut ui = Rc::into_inner(self.ui).unwrap().into_inner();
         ui.base = Some(base);
         ui