Implement theme styling for Rule

examples/scrollable/src/main.rs

@@ -179,7 +179,7 @@ impl Sandbox for ScrollableDemo {
             .spacing(20)
             .padding(20)
             .push(choose_theme)
-            .push(Rule::horizontal(20).style(self.theme))
+            .push(Rule::horizontal(20))
             .push(scrollable_row);
 
         Container::new(content)

examples/scrollable/src/style.rs

@@ -1,4 +1,4 @@
-use iced::{container, rule, scrollable};
+use iced::{container, scrollable};
 
 #[derive(Debug, Clone, Copy, PartialEq, Eq)]
 pub enum Theme {
@@ -34,17 +34,8 @@ impl<'a> From<Theme> for Box<dyn scrollable::StyleSheet + 'a> {
     }
 }
 
-impl From<Theme> for Box<dyn rule::StyleSheet> {
-    fn from(theme: Theme) -> Self {
-        match theme {
-            Theme::Light => Default::default(),
-            Theme::Dark => dark::Rule.into(),
-        }
-    }
-}
-
 mod dark {
-    use iced::{container, rule, scrollable, Color};
+    use iced::{container, scrollable, Color};
 
     const BACKGROUND: Color = Color::from_rgb(
         0x36 as f32 / 255.0,
@@ -139,17 +130,4 @@ mod dark {
             }
         }
     }
-
-    pub struct Rule;
-
-    impl rule::StyleSheet for Rule {
-        fn style(&self) -> rule::Style {
-            rule::Style {
-                color: SURFACE,
-                width: 2,
-                radius: 1.0,
-                fill_mode: rule::FillMode::Percent(30.0),
-            }
-        }
-    }
 }