message: Export `Gradient` in `iced_graphics` root
diff: @@ -40,6 +40,7 @@ pub mod window;
  pub use antialiasing::Antialiasing;
  pub use backend::Backend;
  pub use error::Error;
  +pub use gradient::Gradient;
  pub use layer::Layer;
  pub use primitive::Primitive;
  pub use renderer::Renderer;
  