message: Fix `bezier_tool` example
diff: @@ -16,7 +16,7 @@ mod bezier {
  };
  use iced_wgpu::{
  triangle::{Mesh2D, Vertex2D},
  - Primitive, Renderer,
  + Defaults, Primitive, Renderer,
  };
  use lyon::tessellation::{
  basic_shapes, BuffersBuilder, StrokeAttributes, StrokeOptions,
  @@ -89,6 +89,7 @@ mod bezier {
  fn draw(
  &self,
  _renderer: &mut Renderer,
  + _defaults: &Defaults,
  layout: Layout<'_>,
  cursor_position: Point,
  ) -> (Primitive, MouseCursor) {
  @@ -261,7 +262,7 @@ mod bezier {
  use bezier::Bezier;
  use iced::{
  - button, Align, Button, Color, Column, Container, Element, Length, Sandbox,
  + button, Align, Button, Column, Container, Element, Length, Sandbox,
  Settings, Text,
  };
  @@ -323,8 +324,6 @@ impl Sandbox for Example {
  .push(
  Button::new(&mut self.button_state, Text::new("Clear"))
  .padding(8)
  - .background(Color::from_rgb(0.5, 0.5, 0.5))
  - .border_radius(4)
  .on_press(Message::Clear),
  );
  