UIButton tintColor

#import "FunctionalViewController.h"

@interface FunctionalViewController ()
@end

@implementation FunctionalViewController

@synthesize counter;
@synthesize seconds;
@synthesize mSeconds;
@synthesize myTimer;
@synthesize startButton;
@synthesize stopButton;
@synthesize resetButton;






- (void) count{
    float sec;
int val1, val2;
counter++;

    val1 = counter /10;
    val2 = fmod (counter,val1);
    NSLog(@"VAl2 =%i",val2);
    sec = val1 + (val2 /10);


    if (sec <= 0.0) {
        seconds.text = [NSString stringWithFormat:@"00."];
            mSeconds.text = [NSString stringWithFormat:@"00 Sec"];
}else{
    seconds.text = [NSString stringWithFormat:@"%02i.", val1];
    mSeconds.text = [NSString stringWithFormat:@"%02i Sec",val2];

}
NSLog(@"Counter = %i", counter);
}


- (IBAction)start:(id)sender {
    counter = 0;

    if (!myTimer){
myTimer = [NSTimer   scheduledTimerWithTimeInterval:0.10
                                               target:self
                                             selector:@selector (count)
                                             userInfo:nil
                                              repeats:YES];
    }

    else{
    [myTimer fire];
    }
    seconds.text = [NSString stringWithFormat:@"00."];
    mSeconds.text = [NSString stringWithFormat:@"00 Sec"];
    self.seconds.textColor = GREEN_COLOUR;
    self.mSeconds.textColor = GREEN_COLOUR;
    NSLog(@"Counter %i", counter);
    NSLog(@"MyTimer %@",myTimer);

}

- (IBAction)stop:(id)sender {

    [myTimer invalidate];
    myTimer = nil;    
    //    NSLog(@"Counter %i", counter);
    self.seconds.textColor = [UIColor blackColor];
    self.mSeconds.textColor = [UIColor blackColor];

}

- (IBAction)Reset:(id)sender {
    if (counter > 0) {
        [myTimer invalidate];
        myTimer = nil;
    }
}



- (void)viewDidLoad
{
   [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.

    //Background Images:
   [self.view setBackgroundColor:[UIColor colorWithPatternImage:[UIImage imageNamed:@"steel-mesh.png"]]];

    //Button Colours:
    self.startButton.tintColor= GREEN_COLOUR;
    self.stopButton.tintColor= RED_COLOUR;
    self.resetButton.tintColor= BLUE_COLOUR;

    //Text attributes
        seconds.text = [NSString stringWithFormat:@"00."];
    mSeconds.text = [NSString stringWithFormat:@"00 Sec"];
    seconds.backgroundColor = [UIColor grayColor];
}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

@end