Button bar height?

[ghost]

The bar where the cancel button is is much higher than the "cancel" button text itself, (like 1.5 times). Why is it so big and can it be reduced in size? It's the little details that matter... ;)

[ghost]

And centering the cancel button would be nice too (as well as changing it's color). Tried some things but nothing worked..

        [cancelButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
        [cancelButton setTintColor:[UIColor whiteColor]];

        cancelButton.translatesAutoresizingMaskIntoConstraints = YES;

        cancelButton.center = CGPointMake(infoButton.frame.origin.x, infoButton.frame.origin.y);
        cancelButton.frame = CGRectMake(infoButton.frame.origin.x, infoButton.frame.origin.y, cancelButton.frame.size.width, cancelButton.frame.size.height);
     //   cancelButton.center = [[[[self.scanReader.view.subviews objectAtIndex:2] subviews] objectAtIndex:0] center];

        [[[[self.scanReader.view.subviews objectAtIndex:2] subviews] objectAtIndex:0] setNeedsDisplay];