message: Ensured back image updates when prop changes
  Need to wait for the image to load before updating the style
diff: self.backImageDidLoadBlock();
  }
  self ->_backImage = image;
  + [self updateStyle];
  });
  }];
  } else {
  _backImage = nil;
  - }
  [self updateStyle];
  }
  +}
  - (void)didSetProps:(NSArray<NSString *> *)changedProps
  {
  