Generate icon image on iOS 13

generateIconImageWithInfo.m

struct SBIconImageInfo {
    struct CGSize size;
    double scale;
    double continuousCornerRadius;
};

- (UIImage *)iconImageForIdentifier:(NSString *)identifier {
  
  SBIconController *iconController = [NSClassFromString(@"SBIconController") sharedInstance];
  SBIcon *icon = [iconController.model expectedIconForDisplayIdentifier:identifier];
  
  struct CGSize imageSize;
  imageSize.height = 60;
  imageSize.width = 60;
  
  struct SBIconImageInfo imageInfo;
  imageInfo.size  = imageSize;
  imageInfo.scale = [UIScreen mainScreen].scale;
  imageInfo.continuousCornerRadius = 12;
  
  return [icon generateIconImageWithInfo:imageInfo];
}