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this is my code: NSMutableArray *imagesArray = [NSMutableArray array]; for (NSInteger i = 0; i < 3; i++) { UIImage *image = [UIImage imageNamed:[NSString stringWithFormat:@"Speed_Dian_%ld",i]]; [imagesArray addObject:image]; } UIImage *animationImage = [UIImage animatedImageWithImages:imagesArray duration:1.0]; vc.tabBarItem.image = [animationImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]; vc.tabBarItem.selectedImage = [animationImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];it is rendered in grey outline IN IOS13 , Other version system is work well. how can i repair it?