message: Add size, spacing, and text_size properties to Checkbox
diff: @@ -30,7 +30,10 @@ pub struct Checkbox<Message, Renderer: self::Renderer> {
  is_checked: bool,
  on_toggle: Box<dyn Fn(bool) -> Message>,
  label: String,
  + size: u16,
  width: Length,
  + spacing: u16,
  + text_size: u16,
  style: Renderer::Style,
  }
  @@ -53,11 +56,22 @@ impl<Message, Renderer: self::Renderer> Checkbox<Message, Renderer> {
  is_checked,
  on_toggle: Box::new(f),
  label: String::from(label),
  + size: 20,
  width: Length::Shrink,
  + spacing: 15,
  + text_size: 20,
  style: Renderer::Style::default(),
  }
  }
  + /// Sets the size of the [`Checkbox`].
  + ///
  + /// [`Checkbox`]: struct.Checkbox.html
  + pub fn size(mut self, size: u16) -> Self {
  + self.size = size;
  + self
  + }
  +
  /// Sets the width of the [`Checkbox`].
  ///
  /// [`Checkbox`]: struct.Checkbox.html
  @@ -66,6 +80,22 @@ impl<Message, Renderer: self::Renderer> Checkbox<Message, Renderer> {
  self
  }
  + /// Sets the spacing between the [`Checkbox`] and the text.
  + ///
  + /// [`Checkbox`]: struct.Checkbox.html
  + pub fn spacing(mut self, spacing: u16) -> Self {
  + self.spacing = spacing;
  + self
  + }
  +
  + /// Sets the text size of the [`Checkbox`].
  + ///
  + /// [`Checkbox`]: struct.Checkbox.html
  + pub fn text_size(mut self, text_size: u16) -> Self {
  + self.text_size = text_size;
  + self
  + }
  +
  /// Sets the style of the [`Checkbox`].
  ///
  /// [`Checkbox`]: struct.Checkbox.html
  @@ -93,18 +123,19 @@ where
  renderer: &Renderer,
  limits: &layout::Limits,
  ) -> layout::Node {
  - let size = self::Renderer::default_size(renderer);
  -
  Row::<(), Renderer>::new()
  .width(self.width)
  - .spacing(15)
  + .spacing(self.spacing)
  .align_items(Align::Center)
  .push(
  Row::new()
  - .width(Length::Units(size as u16))
  - .height(Length::Units(size as u16)),
  + .width(Length::Units(self.size))
  + .height(Length::Units(self.size)),
  )
  - .push(Text::new(&self.label).width(self.width))
  + .push(
  + Text::new(&self.label)
  + .width(self.width)
  + .size(self.text_size))
  .layout(renderer, limits)
  }
  @@ -151,7 +182,7 @@ where
  defaults,
  label_layout.bounds(),
  &self.label,
  - text::Renderer::default_size(renderer),
  + self.text_size,
  Font::Default,
  None,
  HorizontalAlignment::Left,
  