Re-export variants of Length and alignment types

examples/gradient/src/main.rs

@@ -3,7 +3,7 @@ use iced::gradient;
 use iced::widget::{
     checkbox, column, container, horizontal_space, row, slider, text,
 };
-use iced::{Color, Element, Length, Radians, Theme};
+use iced::{Center, Color, Element, Fill, Radians, Theme};
 
 pub fn main() -> iced::Result {
     tracing_subscriber::fmt::init();
@@ -67,8 +67,8 @@ impl Gradient {
 
                 gradient.into()
             })
-            .width(Length::Fill)
-            .height(Length::Fill);
+            .width(Fill)
+            .height(Fill);
 
         let angle_picker = row![
             text("Angle").width(64),
@@ -77,7 +77,7 @@ impl Gradient {
         ]
         .spacing(8)
         .padding(8)
-        .center_y();
+        .align_y(Center);
 
         let transparency_toggle = iced::widget::Container::new(
             checkbox("Transparent window", transparent)
@@ -129,6 +129,6 @@ fn color_picker(label: &str, color: Color) -> Element<'_, Color> {
     ]
     .spacing(8)
     .padding(8)
-    .center_y()
+    .align_y(Center)
     .into()
 }