UIAlertView title label strange background color issue - iphone

Question

First I show the UIAlertView like this in my view controller (really nothing fancy at all):
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Thank you"
message:#"Successfully saved bookmark"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
But as you can see in the screenshot, the title label is taking the background of my view as its background color:
I have not even the slightest idea of where this could come from, here is how I style my view controller when it appears:
- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.
self.title = #"Details";
[self.view styleBackgroundColor];
[self.saveToBookmarks configureButtonStyle];
[self.getDirections configureButtonStyle];
self.name.text = [simoItem name];
self.relativeLocation.text = [self relativeLocationStringForLocation:[simoItem location]];
self.address.text = [simoItem address];
self.type.text = [self buildTypesString];
[self.name styleMainLabel];
[self.address styleSubLabel];
[self.type styleSubLabel];
[self.relativeLocation styleSubLabel];
}
Tried cleaning the project, uninstalling the app from the sim and shaking my computer but nothing has done it so far...
EDIT: added code for styleMainLabel on request
-(void) styleMainLabel {
//colors
UIColor *backgroundColor = [Utilities getBackgoundColorPreference];
UIColor *textColor = [Utilities getTextColorPreference];
[self setBackgroundColor:backgroundColor];
[self setTextColor:textColor];
//text size styling
self.font = [UIFont fontWithName:#"Tiresias PCfont" size:35.0];
self.adjustsFontSizeToFitWidth = YES;
}

Answer 1

Okay I fixed the problem, this was cause by some CALayer color properties set in accessibility events callbacks. Here is the code that causes the problem
- (void)accessibilityElementDidBecomeFocused {
[super accessibilityElementDidBecomeFocused];
CALayer *layer = [self layer];
layer.backgroundColor = [[Utilities getFocusedBackgroundColorPreference] CGColor];
}
-(void) accessibilityElementDidLoseFocus {
[super accessibilityElementDidLoseFocus];
CALayer *layer = [self layer];
layer.backgroundColor = [[Utilities getBackgoundColorPreference] CGColor];
}
I haven't fixed it yet but turning off accessibility made it disappear. Thanks for your help.

Answer 2

There may be problem in styleMainLabel code. So first check your code and again if you are getting then do it.
UIAlertView *alert = [[UIAlertView alloc] initWithTitle:#"Thank you"
message:#"Successfully saved bookmark"
delegate:nil
cancelButtonTitle:#"OK"
otherButtonTitles:nil];
[alert show];
UILabel *theTitle = [alert valueForKey:#"_titleLabel"];
[theTitle setBackgroundColor:[UIColor clearColor]];