Merge origin/main into macos

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

lib/ui_platform_macos/src/lib.rs

@@ -1620,6 +1620,7 @@ fn create_native_window(window: &MacosWindow, app: *mut AnyObject) -> Option<Nat
         target,
         (size.width * scale_factor).max(1.0) as u32,
         (size.height * scale_factor).max(1.0) as u32,
+        window.spec.base_color,
     )
     .ok();
     let mut renderer = renderer;