1 files changed, 6 insertions, 3 deletions
diff --git a/native/src/renderer.rs b/native/src/renderer.rs
index 7a68ada4..90cec6c8 100644
--- a/native/src/renderer.rs
+++ b/native/src/renderer.rs
@@ -21,14 +21,15 @@
 //! [`checkbox::Renderer`]: ../widget/checkbox/trait.Renderer.html
 
 mod debugger;
-#[cfg(debug_assertions)]
-mod null;
 mod windowed;
 
 pub use debugger::Debugger;
+pub use windowed::{Target, Windowed};
+
+#[cfg(debug_assertions)]
+mod null;
 #[cfg(debug_assertions)]
 pub use null::Null;
-pub use windowed::{Target, Windowed};
 
 use crate::{layout, Element};
 
@@ -43,6 +44,8 @@ pub trait Renderer: Sized {
     /// [`Renderer`]: trait.Renderer.html
     type Output;
 
+    type Defaults: Default;
+
     /// Lays out the elements of a user interface.
     ///
     /// You should override this if you need to perform any operations before or