A UISegmentedControl has a new appearance in iOS 13 and existing code to alter the colors of the segmented control no longer work as they did.
Prior to
if (@available(iOS 13.0, *)) {
[self.segmentedControl setTitleTextAttributes:@{NSForegroundColorAttributeName: [UIColor whiteColor], NSFontAttributeName: [UIFont systemFontOfSize:13]} forState:UIControlStateSelected];
[self.segmentedControl setSelectedSegmentTintColor:[UIColor blueColor]];
} else {
[self.segmentedControl setTintColor:[UIColor blueColor]];}