Let a `Theme` control the background color of an application

... and remove `Application::background_color`

1 files changed, 3 insertions, 13 deletions

diff --git a/src/application.rs b/src/application.rs
index f05d2c4b..01571b56 100644
--- a/src/application.rs
+++ b/src/application.rs
@@ -1,5 +1,6 @@
+use crate::theme;
 use crate::window;
-use crate::{Color, Command, Element, Executor, Settings, Subscription};
+use crate::{Command, Element, Executor, Settings, Subscription};
 
 /// An interactive cross-platform application.
 ///
@@ -101,7 +102,7 @@ pub trait Application: Sized {
     type Message: std::fmt::Debug + Send;
 
     /// The theme of your [`Application`].
-    type Theme: Default;
+    type Theme: Default + theme::Definition;
 
     /// The data needed to initialize your [`Application`].
     type Flags;
@@ -167,13 +168,6 @@ pub trait Application: Sized {
         window::Mode::Windowed
     }
 
-    /// Returns the background color of the [`Application`].
-    ///
-    /// By default, it returns [`Color::WHITE`].
-    fn background_color(&self) -> Color {
-        Color::WHITE
-    }
-
     /// Returns the scale factor of the [`Application`].
     ///
     /// It can be used to dynamically control the size of the UI at runtime
@@ -277,10 +271,6 @@ where
         self.0.subscription()
     }
 
-    fn background_color(&self) -> Color {
-        self.0.background_color()
-    }
-
     fn scale_factor(&self) -> f64 {
         self.0.scale_factor()
     }