Move styling to a brand new iced_style crate

wgpu/src/widget/container.rs

@@ -1,37 +1,10 @@
-use iced_native::{Background, Color};
+//! Decorate content and apply alignment.
+use crate::Renderer;
 
-#[derive(Debug, Clone, Copy)]
-pub struct Style {
-    pub text_color: Option<Color>,
-    pub background: Option<Background>,
-    pub border_radius: u16,
-}
+pub use iced_style::container::{Style, StyleSheet};
 
-pub trait StyleSheet {
-    fn style(&self) -> Style {
-        Style {
-            text_color: None,
-            background: None,
-            border_radius: 0,
-        }
-    }
-}
-
-struct Default;
-
-impl StyleSheet for Default {}
-
-impl std::default::Default for Box<dyn StyleSheet> {
-    fn default() -> Self {
-        Box::new(Default)
-    }
-}
-
-impl<T> From<T> for Box<dyn StyleSheet>
-where
-    T: 'static + StyleSheet,
-{
-    fn from(style: T) -> Self {
-        Box::new(style)
-    }
-}
+/// An element decorating some content.
+///
+/// This is an alias of an `iced_native` container with a default
+/// `Renderer`.
+pub type Container<'a, Message> = iced_native::Container<'a, Message, Renderer>;