FeedbackAnnotationOverlay class

A full-screen drawing overlay for annotating a screenshot before attaching.

Shows imageBytes as a background and lets the user draw coloured strokes with their finger or stylus. Tapping Save renders the annotated result to a PNG Uint8List and calls onSave. Tapping Discard calls onDiscard without saving.

Typically triggered from FeedbackWidget after a screenshot is captured or after the user picks an image from the gallery.

Navigator.push(
  context,
  MaterialPageRoute(
    builder: (_) => FeedbackAnnotationOverlay(
      imageBytes: screenshotBytes,
      onSave: (annotated) {
        Navigator.pop(context);
        // attach `annotated` to feedback entry
      },
    ),
  ),
);