Merge pull request #2261 from wiiznokes/container-style-colored

Add a colored variant for Container style

widget/src/container.rs

@@ -612,6 +612,12 @@ pub trait Catalog {
 /// A styling function for a [`Container`].
 pub type StyleFn<'a, Theme> = Box<dyn Fn(&Theme) -> Style + 'a>;
 
+impl<'a, Theme> From<Style> for StyleFn<'a, Theme> {
+    fn from(style: Style) -> Self {
+        Box::new(move |_theme| style)
+    }
+}
+
 impl Catalog for Theme {
     type Class<'a> = StyleFn<'a, Self>;
 
@@ -629,6 +635,11 @@ pub fn transparent<Theme>(_theme: &Theme) -> Style {
     Style::default()
 }
 
+/// A [`Container`] with the given [`Background`].
+pub fn background(background: impl Into<Background>) -> Style {
+    Style::default().background(background)
+}
+
 /// A rounded [`Container`] with a background.
 pub fn rounded_box(theme: &Theme) -> Style {
     let palette = theme.extended_palette();