diff --git a/src/event.rs b/src/event.rs
index 9134c19..9e74977 100644
--- a/src/event.rs
+++ b/src/event.rs
@@ -35,15 +35,8 @@ pub use event_ctx;
 pub mod eventable {
     use super::*;
 
-    pub trait Eventable<W, Tag> {
-        fn on<E: Event, Ctx: 'static>(
-            self,
-            event: E,
-            f: impl WidgetEventFn<Ctx, E::Data, W>,
-        ) -> impl WidgetIdFn<W> + Eventable<W, IdFnTag>;
-    }
-
-    impl<WL: WidgetLike<Tag>, Tag> Eventable<WL::Widget, Tag> for WL {
+    widget_trait! {
+        pub trait Eventable;
         fn on<E: Event, Ctx: 'static>(
             self,
             event: E,
diff --git a/src/widget/trait_fns.rs b/src/widget/trait_fns.rs
index f3cb5c2..684d8f1 100644
--- a/src/widget/trait_fns.rs
+++ b/src/widget/trait_fns.rs
@@ -4,26 +4,9 @@ use crate::prelude::*;
 // these methods should "not require any context" (require unit) because they're in core
 event_ctx!(());
 
-pub trait CoreWidget<W, Tag> {
-    fn pad(self, padding: impl Into<Padding>) -> impl WidgetFn<Pad>;
-    fn align(self, align: impl Into<Align>) -> impl WidgetFn<Aligned>;
-    fn center(self) -> impl WidgetFn<Aligned>;
-    fn label(self, label: impl Into<String>) -> impl WidgetIdFn<W>;
-    fn sized(self, size: impl Into<Size>) -> impl WidgetFn<Sized>;
-    fn width(self, len: impl Into<Len>) -> impl WidgetFn<Sized>;
-    fn height(self, len: impl Into<Len>) -> impl WidgetFn<Sized>;
-    fn max_width(self, width: impl Into<Len>) -> impl WidgetFn<MaxSize>;
-    fn max_height(self, height: impl Into<Len>) -> impl WidgetFn<MaxSize>;
-    fn offset(self, amt: impl Into<UiVec2>) -> impl WidgetFn<Offset>;
-    fn scroll(self) -> impl WidgetIdFn<Scroll>;
-    fn masked(self) -> impl WidgetFn<Masked>;
-    fn background<T>(self, w: impl WidgetLike<T>) -> impl WidgetFn<Stack>;
-    fn foreground<T>(self, w: impl WidgetLike<T>) -> impl WidgetFn<Stack>;
-    fn layer_offset(self, offset: usize) -> impl WidgetFn<LayerOffset>;
-    fn to_any(self) -> impl WidgetRet;
-}
+widget_trait! {
+    pub trait CoreWidget;
 
-impl<W: WidgetLike<Tag>, Tag> CoreWidget<W::Widget, Tag> for W {
     fn pad(self, padding: impl Into<Padding>) -> impl WidgetFn<Pad> {
         |ui| Pad {
             padding: padding.into(),
@@ -42,7 +25,7 @@ impl<W: WidgetLike<Tag>, Tag> CoreWidget<W::Widget, Tag> for W {
         self.align(Align::CENTER)
     }
 
-    fn label(self, label: impl Into<String>) -> impl WidgetIdFn<W::Widget> {
+    fn label(self, label: impl Into<String>) -> impl WidgetIdFn<WL::Widget> {
         |ui| {
             let id = self.add(ui);
             ui.set_label(&id, label.into());