diff --git a/TODO.md b/TODO.md
index c5095d17..38defad0 100644
--- a/TODO.md
+++ b/TODO.md
@@ -122,16 +122,6 @@ TODO-list for the Egui project. If you looking for something to do, look here.
   * e.g. `ui.wrap(Frame::new()).wrap(Resize::new()).wrap(ScrollArea::new()).show(|ui| ...)`
 * [ ] Attach labels to checkboxes, radio buttons and sliders with a separate wrapper-widget ?
 
-### Refactor space allocation
-
-When painting a widget, you want to allocate space. On that space you sometimes want to paint, sometimes create a sub-Ui to layout child widgets. So sometimes you want a `Painter` for the region, sometimes a new `Ui`. However, what you are doing is essentially the same thing, and so we should make that clearer somehow, maybe via naming.
-
-* `ui.allocate(size) -> Rect`
-* `ui.canvas(size) -> Paint`
-* `ui.child_ui(size) -> Ui`
-
-This is a good place to support whole-widget culling. If a swidget is not visible, the above functions should maybe return `None` so that the widget code can early-out.
-
 ## Other
 
 * [x] Persist UI state in external storage
diff --git a/egui/src/demos/demo_window.rs b/egui/src/demos/demo_window.rs
index b4980b9e..82338811 100644
--- a/egui/src/demos/demo_window.rs
+++ b/egui/src/demos/demo_window.rs
@@ -104,9 +104,10 @@ impl DemoWindow {
             .show(ui, |ui| {
                 ui.horizontal(|ui| {
                     ui.label("You can pretty easily paint your own small icons:");
-                    let painter = ui.canvas(Vec2::splat(16.0));
-                    let c = painter.clip_rect().center();
-                    let r = painter.clip_rect().width() / 2.0 - 1.0;
+                    let rect = ui.allocate_space(Vec2::splat(16.0));
+                    let painter = ui.painter();
+                    let c = rect.center();
+                    let r = rect.width() / 2.0 - 1.0;
                     let color = Srgba::gray(128);
                     let stroke = Stroke::new(1.0, color);
                     painter.circle_stroke(c, r, stroke);
diff --git a/egui/src/ui.rs b/egui/src/ui.rs
index f901f79b..09cc964c 100644
--- a/egui/src/ui.rs
+++ b/egui/src/ui.rs
@@ -561,15 +561,6 @@ impl Ui {
         response
     }
 
-    /// Ask to allocate a certain amount of space and return a Painter for that region.
-    ///
-    /// You may get back a `Painter` with a smaller or larger size than what you desired,
-    /// depending on the available space and the current layout.
-    pub fn canvas(&mut self, desired_size: Vec2) -> Painter {
-        let rect = self.allocate_space(desired_size);
-        self.painter_at(rect)
-    }
-
     /// Show an image here with the given size
     pub fn image(&mut self, texture_id: TextureId, desired_size: Vec2) -> Response {
         self.add(Image::new(texture_id, desired_size))