Address documentation feedback

- Fix broken links
  - Mention generic `Color` in some widgets
  - Clarify meaning of renderer-agnostic in usage/overview example

README.md

@@ -85,7 +85,7 @@ __view logic__:
 
 ```rust
 use iced::{Button, Column, Text};
-use iced_wgpu::Renderer; // Iced is renderer-agnostic! We need to bring our own!
+use iced_wgpu::Renderer; // Iced does not include a renderer! We need to bring our own!
 
 impl Counter {
     pub fn view(&mut self) -> Column<Message, Renderer> {

src/lib.rs

@@ -114,7 +114,7 @@
 //! #     }
 //! # }
 //! use iced::{Button, Column, Text};
-//! use iced_wgpu::Renderer; // Iced is renderer-agnostic! We need to bring our own!
+//! use iced_wgpu::Renderer; // Iced does not include a renderer! We need to bring our own!
 //!
 //! impl Counter {
 //!     pub fn view(&mut self) -> Column<Message, Renderer> {

src/widget/button.rs

@@ -242,11 +242,11 @@ pub enum Class {
 
 /// The renderer of a [`Button`].
 ///
-/// Your [`core::Renderer`] will need to implement this trait before being
+/// Your [renderer] will need to implement this trait before being
 /// able to use a [`Button`] in your user interface.
 ///
 /// [`Button`]: struct.Button.html
-/// [`core::Renderer`]: ../../core/trait.Renderer.html
+/// [renderer]: ../../renderer/index.html
 pub trait Renderer {
     /// Draws a [`Button`].
     ///

src/widget/checkbox.rs

@@ -8,7 +8,7 @@ use crate::{
     Widget,
 };
 
-/// A box that can be checked.
+/// A box that can be checked, with a generic text `Color`.
 ///
 /// It implements [`Widget`] when the associated `Renderer` implements the
 /// [`checkbox::Renderer`] trait.
@@ -80,9 +80,8 @@ impl<Color, Message> Checkbox<Color, Message> {
         }
     }
 
-    /// Sets the [`Color`] of the label of the [`Checkbox`].
+    /// Sets the `Color` of the label of the [`Checkbox`].
     ///
-    /// [`Color`]: ../../../../graphics/struct.Color.html
     /// [`Checkbox`]: struct.Checkbox.html
     pub fn label_color(mut self, color: Color) -> Self {
         self.label_color = Some(color);
@@ -165,11 +164,11 @@ where
 
 /// The renderer of a [`Checkbox`].
 ///
-/// Your [`core::Renderer`] will need to implement this trait before being
+/// Your [renderer] will need to implement this trait before being
 /// able to use a [`Checkbox`] in your user interface.
 ///
 /// [`Checkbox`]: struct.Checkbox.html
-/// [`core::Renderer`]: ../../core/trait.Renderer.html
+/// [renderer]: ../../renderer/index.html
 pub trait Renderer {
     /// Draws a [`Checkbox`].
     ///

src/widget/column.rs

@@ -121,7 +121,7 @@ impl<'a, Message, Renderer> Column<'a, Message, Renderer> {
 
     /// Adds an [`Element`] to the [`Column`].
     ///
-    /// [`Element`]: ../core/struct.Element.html
+    /// [`Element`]: ../struct.Element.html
     /// [`Column`]: struct.Column.html
     pub fn push<E>(mut self, child: E) -> Column<'a, Message, Renderer>
     where

src/widget/radio.rs

@@ -8,7 +8,7 @@ use crate::{
 
 use std::hash::Hash;
 
-/// A circular button representing a choice.
+/// A circular button representing a choice, with a generic text `Color`.
 ///
 /// It implements [`Widget`] when the associated `Renderer` implements the
 /// [`radio::Renderer`] trait.
@@ -92,9 +92,8 @@ impl<Color, Message> Radio<Color, Message> {
         }
     }
 
-    /// Sets the [`Color`] of the label of the [`Radio`].
+    /// Sets the `Color` of the label of the [`Radio`].
     ///
-    /// [`Color`]: ../../../../graphics/struct.Color.html
     /// [`Radio`]: struct.Radio.html
     pub fn label_color(mut self, color: Color) -> Self {
         self.label_color = Some(color);
@@ -175,11 +174,11 @@ where
 
 /// The renderer of a [`Radio`] button.
 ///
-/// Your [`core::Renderer`] will need to implement this trait before being
+/// Your [renderer] will need to implement this trait before being
 /// able to use a [`Radio`] button in your user interface.
 ///
 /// [`Radio`]: struct.Radio.html
-/// [`core::Renderer`]: ../../core/trait.Renderer.html
+/// [renderer]: ../../renderer/index.html
 pub trait Renderer {
     /// Draws a [`Radio`] button.
     ///

src/widget/row.rs

@@ -118,7 +118,7 @@ impl<'a, Message, Renderer> Row<'a, Message, Renderer> {
 
     /// Adds an [`Element`] to the [`Row`].
     ///
-    /// [`Element`]: ../core/struct.Element.html
+    /// [`Element`]: ../struct.Element.html
     /// [`Row`]: struct.Row.html
     pub fn push<E>(mut self, child: E) -> Row<'a, Message, Renderer>
     where

src/widget/slider.rs

@@ -201,11 +201,11 @@ impl State {
 
 /// The renderer of a [`Slider`].
 ///
-/// Your [`core::Renderer`] will need to implement this trait before being
+/// Your [renderer] will need to implement this trait before being
 /// able to use a [`Slider`] in your user interface.
 ///
 /// [`Slider`]: struct.Slider.html
-/// [`core::Renderer`]: ../../core/trait.Renderer.html
+/// [renderer]: ../../renderer/index.html
 pub trait Renderer {
     /// Draws a [`Slider`].
     ///

src/widget/text.rs

@@ -5,7 +5,7 @@ use crate::{
 
 use std::hash::Hash;
 
-/// A fragment of text.
+/// A fragment of text with a generic `Color`.
 ///
 /// It implements [`Widget`] when the associated `Renderer` implements the
 /// [`text::Renderer`] trait.
@@ -60,10 +60,9 @@ impl<Color> Text<Color> {
         self
     }
 
-    /// Sets the [`Color`] of the [`Text`].
+    /// Sets the `Color` of the [`Text`].
     ///
     /// [`Text`]: struct.Text.html
-    /// [`Color`]: ../../../graphics/struct.Color.html
     pub fn color(mut self, color: Color) -> Self {
         self.color = Some(color);
         self
@@ -88,7 +87,7 @@ impl<Color> Text<Color> {
     /// Sets the [`HorizontalAlignment`] of the [`Text`].
     ///
     /// [`Text`]: struct.Text.html
-    /// [`HorizontalAlignment`]: ../../../graphics/enum.HorizontalAlignment.html
+    /// [`HorizontalAlignment`]: enum.HorizontalAlignment.html
     pub fn horizontal_alignment(
         mut self,
         alignment: HorizontalAlignment,
@@ -100,7 +99,7 @@ impl<Color> Text<Color> {
     /// Sets the [`VerticalAlignment`] of the [`Text`].
     ///
     /// [`Text`]: struct.Text.html
-    /// [`VerticalAlignment`]: ../../../graphics/enum.VerticalAlignment.html
+    /// [`VerticalAlignment`]: enum.VerticalAlignment.html
     pub fn vertical_alignment(mut self, alignment: VerticalAlignment) -> Self {
         self.vertical_alignment = alignment;
         self
@@ -144,11 +143,11 @@ where
 
 /// The renderer of a [`Text`] fragment with a generic `Color`.
 ///
-/// Your [`Renderer`] will need to implement this trait before being
+/// Your [renderer] will need to implement this trait before being
 /// able to use [`Text`] in your [`UserInterface`].
 ///
 /// [`Text`]: struct.Text.html
-/// [`Renderer`]: ../../trait.Renderer.html
+/// [renderer]: ../../renderer/index.html
 /// [`UserInterface`]: ../../struct.UserInterface.html
 pub trait Renderer<Color> {
     /// Creates a [`Node`] with the given [`Style`] for the provided [`Text`]
@@ -157,10 +156,10 @@ pub trait Renderer<Color> {
     /// You should probably use [`Node::with_measure`] to allow [`Text`] to
     /// adapt to the dimensions of its container.
     ///
-    /// [`Node`]: ../../core/struct.Node.html
+    /// [`Node`]: ../../struct.Node.html
-    /// [`Style`]: ../../core/struct.Style.html
+    /// [`Style`]: ../../struct.Style.html
     /// [`Text`]: struct.Text.html
-    /// [`Node::with_measure`]: ../../core/struct.Node.html#method.with_measure
+    /// [`Node::with_measure`]: ../../struct.Node.html#method.with_measure
     fn node(&self, style: Style, content: &str, size: f32) -> Node;
 
     /// Draws a [`Text`] fragment.
@@ -174,8 +173,8 @@ pub trait Renderer<Color> {
     ///   * the [`VerticalAlignment`] of the [`Text`]
     ///
     /// [`Text`]: struct.Text.html
-    /// [`HorizontalAlignment`]: ../../../graphics/enum.HorizontalAlignment.html
+    /// [`HorizontalAlignment`]: enum.HorizontalAlignment.html
-    /// [`VerticalAlignment`]: ../../../graphics/enum.VerticalAlignment.html
+    /// [`VerticalAlignment`]: enum.VerticalAlignment.html
     fn draw(
         &mut self,
         bounds: Rectangle<f32>,