title: How to add a custom CropAspectRatioPreset to image_cropper?
body: <p>I need to have an <code>AspectRatio</code> that is opposite to <code>CropAspectRatioPreset.ratio3x2</code> with <code>image_cropper</code> plugin. When I initialise with <code>aspectRatio: CropAspectRatio(ratioX: 2, ratioY: 3)</code> I have only one option, but I need to have both. How can I do that?</p>
  <p>here is my code:</p>
  <pre><code>    final profileManager = context.read&lt;ProfileManager&gt;();
      final File croppedFile = await ImageCropper.cropImage(
          sourcePath: path,
         // aspectRatio: CropAspectRatio(ratioX: 2, ratioY: 3),
          aspectRatioPresets: [
            CropAspectRatioPreset.ratio3x2,
          ],
          androidUiSettings: AndroidUiSettings(
            toolbarTitle: 'Posicione a Imagem',
            toolbarColor: Colors.black,
            toolbarWidgetColor: Colors.white,
            backgroundColor: Colors.black,
            activeControlsWidgetColor: Colors.white,
            showCropGrid: false,
          ),
          iosUiSettings: IOSUiSettings(
              title: &quot;Posicione a Imagem&quot;,
              cancelButtonTitle: 'Cancelar',
              doneButtonTitle: &quot;Concluir&quot;));
  
     
    }
  </code></pre>