public ActivityBuilder setCropShape(@NonNull CropImageView.CropShape cropShape) {
      mOptions.cropShape = cropShape;
      return this;
    }
The shape of the cropping window.<br>
To set square/circle crop shape set aspect ratio to 1:1.<br>
<i>Default: RECTANGLE</i>
core/src/main/java/com/theartofdev/edmodo/cropper/CropImage.java